61207077030 has 128 divisors (see below), whose sum is σ = 165514959360. Its totient is φ = 14358389760.

The previous prime is 61207077023. The next prime is 61207077077. The reversal of 61207077030 is 3077070216.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 61207076982 and 61207077000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1252801 + ... + 1300739.

It is an arithmetic number, because the mean of its divisors is an integer number (1293085620).

Almost surely, 2^61207077030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61207077030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82757479680).

61207077030 is an abundant number, since it is smaller than the sum of its proper divisors (104307882330).

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

61207077030 is a wasteful number, since it uses less digits than its factorization.

61207077030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48086.

The product of its (nonzero) digits is 12348, while the sum is 33.

The spelling of 61207077030 in words is "sixty-one billion, two hundred seven million, seventy-seven thousand, thirty".