40317851012 has 24 divisors (see below), whose sum is σ = 73754767296. Its totient is φ = 19248176288.

The previous prime is 40317851011. The next prime is 40317851023. The reversal of 40317851012 is 21015871304.

It is a super-2 number, since 2×40317851012² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40317851012.

It is not an unprimeable number, because it can be changed into a prime (40317851011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337403 + ... + 440994.

It is an arithmetic number, because the mean of its divisors is an integer number (3073115304).

Almost surely, 2^40317851012 is an apocalyptic number.

It is an amenable number.

40317851012 is a deficient number, since it is larger than the sum of its proper divisors (33436916284).

40317851012 is a wasteful number, since it uses less digits than its factorization.

40317851012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778987 (or 778985 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The spelling of 40317851012 in words is "forty billion, three hundred seventeen million, eight hundred fifty-one thousand, twelve".