40597989972 has 48 divisors (see below), whose sum is σ = 94941568512. Its totient is φ = 13502285280.

The previous prime is 40597989967. The next prime is 40597989979. The reversal of 40597989972 is 27998979504.

It is a super-2 number, since 2×40597989972² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40597989897 and 40597989906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40597989979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16837447 + ... + 16839857.

It is an arithmetic number, because the mean of its divisors is an integer number (1977949344).

Almost surely, 2^40597989972 is an apocalyptic number.

It is an amenable number.

40597989972 is an abundant number, since it is smaller than the sum of its proper divisors (54343578540).

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

40597989972 is a wasteful number, since it uses less digits than its factorization.

40597989972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4988 (or 4986 counting only the distinct ones).

The product of its (nonzero) digits is 102876480, while the sum is 69.

The spelling of 40597989972 in words is "forty billion, five hundred ninety-seven million, nine hundred eighty-nine thousand, nine hundred seventy-two".