61708508502 has 16 divisors (see below), whose sum is σ = 123420107712. Its totient is φ = 20568987720.

The previous prime is 61708508497. The next prime is 61708508507. The reversal of 61708508502 is 20580580716.

It is an interprime number because it is at equal distance from previous prime (61708508497) and next prime (61708508507).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61708508507) 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, 192393 + ... + 400539.

It is an arithmetic number, because the mean of its divisors is an integer number (7713756732).

Almost surely, 2^61708508502 is an apocalyptic number.

61708508502 is an abundant number, since it is smaller than the sum of its proper divisors (61711599210).

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

61708508502 is a wasteful number, since it uses less digits than its factorization.

61708508502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257563.

The product of its (nonzero) digits is 134400, while the sum is 42.

The spelling of 61708508502 in words is "sixty-one billion, seven hundred eight million, five hundred eight thousand, five hundred two".