61276997705 has 32 divisors (see below), whose sum is σ = 91697211648. Its totient is φ = 38190124800.

The previous prime is 61276997699. The next prime is 61276997729. The reversal of 61276997705 is 50779967216.

It is not a de Polignac number, because 61276997705 - 2¹⁸ = 61276735561 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2010359 + ... + 2040611.

It is an arithmetic number, because the mean of its divisors is an integer number (2865537864).

Almost surely, 2^61276997705 is an apocalyptic number.

It is an amenable number.

61276997705 is a deficient number, since it is larger than the sum of its proper divisors (30420213943).

61276997705 is a wasteful number, since it uses less digits than its factorization.

61276997705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35537.

The product of its (nonzero) digits is 10001880, while the sum is 59.

The spelling of 61276997705 in words is "sixty-one billion, two hundred seventy-six million, nine hundred ninety-seven thousand, seven hundred five".