40721992510 has 16 divisors (see below), whose sum is σ = 73302667200. Its totient is φ = 16288112416.

The previous prime is 40721992481. The next prime is 40721992513. The reversal of 40721992510 is 1529912704.

It is a happy number.

It is a super-2 number, since 2×40721992510² (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 (40721992513) 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, 214296 + ... + 356884.

It is an arithmetic number, because the mean of its divisors is an integer number (4581416700).

Almost surely, 2^40721992510 is an apocalyptic number.

40721992510 is a deficient number, since it is larger than the sum of its proper divisors (32580674690).

40721992510 is a wasteful number, since it uses less digits than its factorization.

40721992510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171155.

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 40721992510 in words is "forty billion, seven hundred twenty-one million, nine hundred ninety-two thousand, five hundred ten".