61041736977 has 16 divisors (see below), whose sum is σ = 87683312640. Its totient is φ = 37549729152.

The previous prime is 61041736939. The next prime is 61041736979. The reversal of 61041736977 is 77963714016.

It is not a de Polignac number, because 61041736977 - 2⁶ = 61041736913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61041736979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196977 + ... + 401102.

It is an arithmetic number, because the mean of its divisors is an integer number (5480207040).

Almost surely, 2^61041736977 is an apocalyptic number.

It is an amenable number.

61041736977 is a deficient number, since it is larger than the sum of its proper divisors (26641575663).

61041736977 is a wasteful number, since it uses less digits than its factorization.

61041736977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600712.

The product of its (nonzero) digits is 1333584, while the sum is 51.

The spelling of 61041736977 in words is "sixty-one billion, forty-one million, seven hundred thirty-six thousand, nine hundred seventy-seven".