40461921565351 has 32 divisors (see below), whose sum is σ = 50043009139200. Its totient is φ = 32163502654080.

The previous prime is 40461921565319. The next prime is 40461921565363. The reversal of 40461921565351 is 15356512916404.

It is a cyclic number.

It is not a de Polignac number, because 40461921565351 - 2⁵ = 40461921565319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40461921565651) 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, 24296425 + ... + 25908301.

It is an arithmetic number, because the mean of its divisors is an integer number (1563844035600).

Almost surely, 2^{40461921565351} is an apocalyptic number.

40461921565351 is a deficient number, since it is larger than the sum of its proper divisors (9581087573849).

40461921565351 is a wasteful number, since it uses less digits than its factorization.

40461921565351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621159.

The product of its (nonzero) digits is 3888000, while the sum is 52.

The spelling of 40461921565351 in words is "forty trillion, four hundred sixty-one billion, nine hundred twenty-one million, five hundred sixty-five thousand, three hundred fifty-one".