40287653777631 has 16 divisors (see below), whose sum is σ = 57849924394080. Its totient is φ = 24791979909120.

The previous prime is 40287653777629. The next prime is 40287653777639. The reversal of 40287653777631 is 13677735678204.

It is not a de Polignac number, because 40287653777631 - 2¹ = 40287653777629 is a prime.

It is a super-2 number, since 2×40287653777631² (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 (40287653777639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6474210 + ... + 11067551.

It is an arithmetic number, because the mean of its divisors is an integer number (3615620274630).

Almost surely, 2^{40287653777631} is an apocalyptic number.

40287653777631 is a deficient number, since it is larger than the sum of its proper divisors (17562270616449).

40287653777631 is a wasteful number, since it uses less digits than its factorization.

40287653777631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17600666.

The product of its (nonzero) digits is 248935680, while the sum is 66.

The spelling of 40287653777631 in words is "forty trillion, two hundred eighty-seven billion, six hundred fifty-three million, seven hundred seventy-seven thousand, six hundred thirty-one".