3551645483871 has 32 divisors (see below), whose sum is σ = 4912254057408. Its totient is φ = 2280688358400.

The previous prime is 3551645483839. The next prime is 3551645483891. The reversal of 3551645483871 is 1783845461553.

It is not a de Polignac number, because 3551645483871 - 2⁵ = 3551645483839 is a prime.

It is a super-2 number, since 2×3551645483871² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3551645483801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140719065 + ... + 140744301.

It is an arithmetic number, because the mean of its divisors is an integer number (153507939294).

Almost surely, 2^{3551645483871} is an apocalyptic number.

3551645483871 is a deficient number, since it is larger than the sum of its proper divisors (1360608573537).

3551645483871 is a wasteful number, since it uses less digits than its factorization.

3551645483871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37931.

The product of its digits is 48384000, while the sum is 60.

The spelling of 3551645483871 in words is "three trillion, five hundred fifty-one billion, six hundred forty-five million, four hundred eighty-three thousand, eight hundred seventy-one".