61272010998 has 48 divisors (see below), whose sum is σ = 145213198416. Its totient is φ = 18517475520.

The previous prime is 61272010993. The next prime is 61272011029. The reversal of 61272010998 is 89901027216.

61272010998 is a `hidden beast` number, since 612 + 7 + 20 + 1 + 0 + 9 + 9 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61272010993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 340965 + ... + 488672.

It is an arithmetic number, because the mean of its divisors is an integer number (3025274967).

Almost surely, 2^61272010998 is an apocalyptic number.

61272010998 is an abundant number, since it is smaller than the sum of its proper divisors (83941187418).

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

61272010998 is a wasteful number, since it uses less digits than its factorization.

61272010998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830029 (or 830026 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The spelling of 61272010998 in words is "sixty-one billion, two hundred seventy-two million, ten thousand, nine hundred ninety-eight".