53999720194 has 24 divisors (see below), whose sum is σ = 94442692608. Its totient is φ = 23089023720.

The previous prime is 53999720179. The next prime is 53999720209. The reversal of 53999720194 is 49102799935.

It is an interprime number because it is at equal distance from previous prime (53999720179) and next prime (53999720209).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 596994 + ... + 681469.

It is an arithmetic number, because the mean of its divisors is an integer number (3935112192).

Almost surely, 2^53999720194 is an apocalyptic number.

53999720194 is a deficient number, since it is larger than the sum of its proper divisors (40442972414).

53999720194 is a wasteful number, since it uses less digits than its factorization.

53999720194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278910 (or 1278903 counting only the distinct ones).

The product of its (nonzero) digits is 5511240, while the sum is 58.

The spelling of 53999720194 in words is "fifty-three billion, nine hundred ninety-nine million, seven hundred twenty thousand, one hundred ninety-four".