83401028264840 has 64 divisors (see below), whose sum is σ = 220458662141760. Its totient is φ = 27994750744320.

The previous prime is 83401028264839. The next prime is 83401028264891. The reversal of 83401028264840 is 4846282010438.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7290293954 + ... + 7290305393.

It is an arithmetic number, because the mean of its divisors is an integer number (3444666595965).

Almost surely, 2^{83401028264840} is an apocalyptic number.

It is an amenable number.

83401028264840 is an abundant number, since it is smaller than the sum of its proper divisors (137057633876920).

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

83401028264840 is a wasteful number, since it uses less digits than its factorization.

83401028264840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14580599382 (or 14580599378 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 50.

The spelling of 83401028264840 in words is "eighty-three trillion, four hundred one billion, twenty-eight million, two hundred sixty-four thousand, eight hundred forty".