61277013434 has 64 divisors (see below), whose sum is σ = 119835749376. Its totient is φ = 22805121024.

The previous prime is 61277013433. The next prime is 61277013437. The reversal of 61277013434 is 43431077216.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (61277013431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11856719 + ... + 11861885.

It is an arithmetic number, because the mean of its divisors is an integer number (1872433584).

Almost surely, 2^61277013434 is an apocalyptic number.

61277013434 is a deficient number, since it is larger than the sum of its proper divisors (58558735942).

61277013434 is a wasteful number, since it uses less digits than its factorization.

61277013434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9039.

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 61277013434 in words is "sixty-one billion, two hundred seventy-seven million, thirteen thousand, four hundred thirty-four".