61922706077 has 4 divisors (see below), whose sum is σ = 61950765696. Its totient is φ = 61894646460.

The previous prime is 61922706073. The next prime is 61922706107. The reversal of 61922706077 is 77060722916.

61922706077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61922706077 - 2² = 61922706073 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61922706073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14026499 + ... + 14030912.

It is an arithmetic number, because the mean of its divisors is an integer number (15487691424).

Almost surely, 2^61922706077 is an apocalyptic number.

It is an amenable number.

61922706077 is a deficient number, since it is larger than the sum of its proper divisors (28059619).

61922706077 is a wasteful number, since it uses less digits than its factorization.

61922706077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28059618.

The product of its (nonzero) digits is 444528, while the sum is 47.

The spelling of 61922706077 in words is "sixty-one billion, nine hundred twenty-two million, seven hundred six thousand, seventy-seven".