61690903277 has 8 divisors (see below), whose sum is σ = 61797964800. Its totient is φ = 61583884560.

The previous prime is 61690903193. The next prime is 61690903279. The reversal of 61690903277 is 77230909616.

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

It is a cyclic number.

It is not a de Polignac number, because 61690903277 - 2³⁰ = 60617161453 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 (61690903279) 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, 4354868 + ... + 4369010.

It is an arithmetic number, because the mean of its divisors is an integer number (7724745600).

Almost surely, 2^61690903277 is an apocalyptic number.

It is an amenable number.

61690903277 is a deficient number, since it is larger than the sum of its proper divisors (107061523).

61690903277 is a wasteful number, since it uses less digits than its factorization.

61690903277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21403.

The product of its (nonzero) digits is 857304, while the sum is 50.

The spelling of 61690903277 in words is "sixty-one billion, six hundred ninety million, nine hundred three thousand, two hundred seventy-seven".