40747777651431 has 40 divisors (see below), whose sum is σ = 64528668254160. Its totient is φ = 25536316684032.

The previous prime is 40747777651411. The next prime is 40747777651433. The reversal of 40747777651431 is 13415677774704.

It is a happy number.

40747777651431 is a `hidden beast` number, since 4 + 0 + 7 + 4 + 77 + 77 + 65 + 1 + 431 = 666.

It is not a de Polignac number, because 40747777651431 - 2⁶ = 40747777651367 is a prime.

It is a super-2 number, since 2×40747777651431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40747777651433) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16752216 + ... + 19029773.

It is an arithmetic number, because the mean of its divisors is an integer number (1613216706354).

Almost surely, 2^{40747777651431} is an apocalyptic number.

40747777651431 is a deficient number, since it is larger than the sum of its proper divisors (23780890602729).

40747777651431 is a wasteful number, since it uses less digits than its factorization.

40747777651431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35782845 (or 35782836 counting only the distinct ones).

The product of its (nonzero) digits is 96808320, while the sum is 63.

The spelling of 40747777651431 in words is "forty trillion, seven hundred forty-seven billion, seven hundred seventy-seven million, six hundred fifty-one thousand, four hundred thirty-one".