40197642528 has 48 divisors (see below), whose sum is σ = 107972748576. Its totient is φ = 13087603200.

The previous prime is 40197642517. The next prime is 40197642533. The reversal of 40197642528 is 82524679104.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4864773 + ... + 4873028.

It is an arithmetic number, because the mean of its divisors is an integer number (2249432262).

Almost surely, 2^40197642528 is an apocalyptic number.

40197642528 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40197642528 is an abundant number, since it is smaller than the sum of its proper divisors (67775106048).

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

40197642528 is a wasteful number, since it uses less digits than its factorization.

40197642528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9737857 (or 9737849 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 40197642528 in words is "forty billion, one hundred ninety-seven million, six hundred forty-two thousand, five hundred twenty-eight".