61769422506 has 32 divisors (see below), whose sum is σ = 137312480448. Its totient is φ = 18364835840.

The previous prime is 61769422499. The next prime is 61769422513. The reversal of 61769422506 is 60522496716.

It is an interprime number because it is at equal distance from previous prime (61769422499) and next prime (61769422513).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8825751 + ... + 8832746.

It is an arithmetic number, because the mean of its divisors is an integer number (4291015014).

Almost surely, 2^61769422506 is an apocalyptic number.

61769422506 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

61769422506 is an abundant number, since it is smaller than the sum of its proper divisors (75543057942).

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

61769422506 is a wasteful number, since it uses less digits than its factorization.

61769422506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17658566.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 61769422506 in words is "sixty-one billion, seven hundred sixty-nine million, four hundred twenty-two thousand, five hundred six".