61173405430276 has 6 divisors (see below), whose sum is σ = 107053459502990. Its totient is φ = 30586702715136.

The previous prime is 61173405430199. The next prime is 61173405430303. The reversal of 61173405430276 is 67203450437116.

It can be written as a sum of positive squares in only one way, i.e., 56947790733376 + 4225614696900 = 7546376^2 + 2055630^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7646675678781 + ... + 7646675678788.

Almost surely, 2^{61173405430276} is an apocalyptic number.

It is an amenable number.

61173405430276 is a deficient number, since it is larger than the sum of its proper divisors (45880054072714).

61173405430276 is a wasteful number, since it uses less digits than its factorization.

61173405430276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15293351357573 (or 15293351357571 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 61173405430276 in words is "sixty-one trillion, one hundred seventy-three billion, four hundred five million, four hundred thirty thousand, two hundred seventy-six".