4151537640 has 96 divisors (see below), whose sum is σ = 13857203880. Its totient is φ = 1077152256.

The previous prime is 4151537591. The next prime is 4151537657. The reversal of 4151537640 is 467351514.

4151537640 is a `hidden beast` number, since 4 + 1 + 5 + 1 + 5 + 3 + 7 + 640 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4147102404 + 4435236 = 64398^2 + 2106^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4151537595 and 4151537604.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142519 + ... + 169158.

Almost surely, 2^4151537640 is an apocalyptic number.

4151537640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4151537640 is an abundant number, since it is smaller than the sum of its proper divisors (9705666240).

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

4151537640 is a wasteful number, since it uses less digits than its factorization.

4151537640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311731 (or 311724 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 4151537640 is about 64432.4269293032. The cubic root of 4151537640 is about 1607.1990237471.

The spelling of 4151537640 in words is "four billion, one hundred fifty-one million, five hundred thirty-seven thousand, six hundred forty".