61982020272 has 60 divisors (see below), whose sum is σ = 164121056840. Its totient is φ = 20156728320.

The previous prime is 61982020223. The next prime is 61982020291. The reversal of 61982020272 is 27202028916.

61982020272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61982020272.

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, 303397 + ... + 464772.

Almost surely, 2^61982020272 is an apocalyptic number.

It is an amenable number.

61982020272 is an abundant number, since it is smaller than the sum of its proper divisors (102139036568).

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

61982020272 is a wasteful number, since it uses less digits than its factorization.

61982020272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768262 (or 768215 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 61982020272 in words is "sixty-one billion, nine hundred eighty-two million, twenty thousand, two hundred seventy-two".