4151649645 has 96 divisors (see below), whose sum is σ = 8951814144. Its totient is φ = 1748736000.

The previous prime is 4151649617. The next prime is 4151649727. The reversal of 4151649645 is 5469461514.

4151649645 is a `hidden beast` number, since 4 + 1 + 516 + 4 + 96 + 45 = 666.

It is not a de Polignac number, because 4151649645 - 2⁶ = 4151649581 is a prime.

It is a super-3 number, since 3×4151649645³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 4151649645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 90420 + ... + 128370.

It is an arithmetic number, because the mean of its divisors is an integer number (93248064).

Almost surely, 2^4151649645 is an apocalyptic number.

4151649645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4151649645 is an abundant number, since it is smaller than the sum of its proper divisors (4800164499).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4151649645 is a wasteful number, since it uses less digits than its factorization.

4151649645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38003 (or 38000 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 4151649645 is about 64433.2960898323. The cubic root of 4151649645 is about 1607.2134772439.

It can be divided in two parts, 4151 and 649645, that added together give a triangular number (653796 = T₁₁₄₃).

The spelling of 4151649645 in words is "four billion, one hundred fifty-one million, six hundred forty-nine thousand, six hundred forty-five".