61802694580 has 24 divisors (see below), whose sum is σ = 141584355360. Its totient is φ = 22473707040.

The previous prime is 61802694553. The next prime is 61802694587. The reversal of 61802694580 is 8549620816.

It is a super-2 number, since 2×61802694580² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61802694587) 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, 140460450 + ... + 140460889.

It is an arithmetic number, because the mean of its divisors is an integer number (5899348140).

Almost surely, 2^61802694580 is an apocalyptic number.

It is an amenable number.

61802694580 is an abundant number, since it is smaller than the sum of its proper divisors (79781660780).

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

61802694580 is a wasteful number, since it uses less digits than its factorization.

61802694580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280921359 (or 280921357 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 61802694580 in words is "sixty-one billion, eight hundred two million, six hundred ninety-four thousand, five hundred eighty".