40354013544251 has 24 divisors (see below), whose sum is σ = 47646798102864. Its totient is φ = 33876035847680.

The previous prime is 40354013544239. The next prime is 40354013544287. The reversal of 40354013544251 is 15244531045304.

It is a de Polignac number, because none of the positive numbers 2^k-40354013544251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40354013544199 and 40354013544208.

It is not an unprimeable number, because it can be changed into a prime (40354013514251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119585600 + ... + 119922573.

It is an arithmetic number, because the mean of its divisors is an integer number (1985283254286).

Almost surely, 2^{40354013544251} is an apocalyptic number.

40354013544251 is a deficient number, since it is larger than the sum of its proper divisors (7292784558613).

40354013544251 is a wasteful number, since it uses less digits than its factorization.

40354013544251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239508271 (or 239508254 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 40354013544251 its reverse (15244531045304), we get a palindrome (55598544589555).

The spelling of 40354013544251 in words is "forty trillion, three hundred fifty-four billion, thirteen million, five hundred forty-four thousand, two hundred fifty-one".