61764518870 has 8 divisors (see below), whose sum is σ = 111176133984. Its totient is φ = 24705807544.

The previous prime is 61764518833. The next prime is 61764518929. The reversal of 61764518870 is 7881546716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3088225934 + ... + 3088225953.

It is an arithmetic number, because the mean of its divisors is an integer number (13897016748).

Almost surely, 2^61764518870 is an apocalyptic number.

61764518870 is a deficient number, since it is larger than the sum of its proper divisors (49411615114).

61764518870 is a wasteful number, since it uses less digits than its factorization.

61764518870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6176451894.

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 61764518870 in words is "sixty-one billion, seven hundred sixty-four million, five hundred eighteen thousand, eight hundred seventy".