40351551520 has 48 divisors (see below), whose sum is σ = 108949192128. Its totient is φ = 13834817280.

The previous prime is 40351551479. The next prime is 40351551533. The reversal of 40351551520 is 2515515304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18012966 + ... + 18015205.

It is an arithmetic number, because the mean of its divisors is an integer number (2269774836).

Almost surely, 2^40351551520 is an apocalyptic number.

40351551520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40351551520 is an abundant number, since it is smaller than the sum of its proper divisors (68597640608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40351551520 is a wasteful number, since it uses less digits than its factorization.

40351551520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36028193 (or 36028185 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 40351551520 in words is "forty billion, three hundred fifty-one million, five hundred fifty-one thousand, five hundred twenty".