618192061272 has 24 divisors (see below), whose sum is σ = 1674270166140. Its totient is φ = 206064020400.

The previous prime is 618192061247. The next prime is 618192061327. The reversal of 618192061272 is 272160291816.

618192061272 is a `hidden beast` number, since 6 + 1 + 8 + 1 + 9 + 20 + 612 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×618192061272² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4293000354 + ... + 4293000497.

Almost surely, 2^618192061272 is an apocalyptic number.

It is an amenable number.

618192061272 is an abundant number, since it is smaller than the sum of its proper divisors (1056078104868).

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

618192061272 is a wasteful number, since it uses less digits than its factorization.

618192061272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8586000863 (or 8586000856 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 618192061272 in words is "six hundred eighteen billion, one hundred ninety-two million, sixty-one thousand, two hundred seventy-two".