40657650572 has 48 divisors (see below), whose sum is σ = 88723918080. Its totient is φ = 15837729600.

The previous prime is 40657650571. The next prime is 40657650581. The reversal of 40657650572 is 27505675604.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (40657650571) 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, 2523422 + ... + 2539482.

It is an arithmetic number, because the mean of its divisors is an integer number (1848414960).

Almost surely, 2^40657650572 is an apocalyptic number.

It is an amenable number.

40657650572 is an abundant number, since it is smaller than the sum of its proper divisors (48066267508).

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

40657650572 is a wasteful number, since it uses less digits than its factorization.

40657650572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24302 (or 24300 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 47.

The spelling of 40657650572 in words is "forty billion, six hundred fifty-seven million, six hundred fifty thousand, five hundred seventy-two".