61293770608 has 40 divisors (see below), whose sum is σ = 136028400768. Its totient is φ = 26209440192.

The previous prime is 61293770557. The next prime is 61293770609. The reversal of 61293770608 is 80607739216.

It is a happy number.

61293770608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61293770608² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61293770609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568066 + ... + 667297.

Almost surely, 2^61293770608 is an apocalyptic number.

It is an amenable number.

61293770608 is an abundant number, since it is smaller than the sum of its proper divisors (74734630160).

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

61293770608 is a wasteful number, since it uses less digits than its factorization.

61293770608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235821 (or 1235815 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 61293770608 in words is "sixty-one billion, two hundred ninety-three million, seven hundred seventy thousand, six hundred eight".