83765548900 has 72 divisors (see below), whose sum is σ = 208732577760. Its totient is φ = 28857024000.

The previous prime is 83765548883. The next prime is 83765548931. The reversal of 83765548900 is 984556738.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1983061 + ... + 2024860.

It is an arithmetic number, because the mean of its divisors is an integer number (2899063580).

Almost surely, 2^83765548900 is an apocalyptic number.

It is an amenable number.

83765548900 is an abundant number, since it is smaller than the sum of its proper divisors (124967028860).

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

83765548900 is a wasteful number, since it uses less digits than its factorization.

83765548900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007965 (or 4007958 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 83765548900 in words is "eighty-three billion, seven hundred sixty-five million, five hundred forty-eight thousand, nine hundred".