40049861031 has 48 divisors (see below), whose sum is σ = 61222487040. Its totient is φ = 25189073280.

The previous prime is 40049861021. The next prime is 40049861053. The reversal of 40049861031 is 13016894004.

40049861031 is a `hidden beast` number, since 4 + 0 + 0 + 4 + 9 + 8 + 610 + 31 = 666.

It is not a de Polignac number, because 40049861031 - 2⁶ = 40049860967 is a prime.

It is a super-2 number, since 2×40049861031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40049861021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6823360 + ... + 6829226.

It is an arithmetic number, because the mean of its divisors is an integer number (1275468480).

Almost surely, 2^40049861031 is an apocalyptic number.

40049861031 is a deficient number, since it is larger than the sum of its proper divisors (21172626009).

40049861031 is a wasteful number, since it uses less digits than its factorization.

40049861031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6516 (or 6513 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 40049861031 in words is "forty billion, forty-nine million, eight hundred sixty-one thousand, thirty-one".