83015218464 has 48 divisors (see below), whose sum is σ = 218385724032. Its totient is φ = 27611958528.

The previous prime is 83015218457. The next prime is 83015218469. The reversal of 83015218464 is 46481251038.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (83015218469) 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, 889399 + ... + 978294.

It is an arithmetic number, because the mean of its divisors is an integer number (4549702584).

Almost surely, 2^83015218464 is an apocalyptic number.

It is an amenable number.

83015218464 is an abundant number, since it is smaller than the sum of its proper divisors (135370505568).

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

83015218464 is a wasteful number, since it uses less digits than its factorization.

83015218464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868169 (or 1868161 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 83015218464 in words is "eighty-three billion, fifteen million, two hundred eighteen thousand, four hundred sixty-four".