61004197634 has 4 divisors (see below), whose sum is σ = 91506296454. Its totient is φ = 30502098816.

The previous prime is 61004197627. The next prime is 61004197687. The reversal of 61004197634 is 43679140016.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 55363737025 + 5640460609 = 235295^2 + 75103^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61004197591 and 61004197600.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15251049407 + ... + 15251049410.

Almost surely, 2^61004197634 is an apocalyptic number.

61004197634 is a deficient number, since it is larger than the sum of its proper divisors (30502098820).

61004197634 is a wasteful number, since it uses less digits than its factorization.

61004197634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30502098819.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 61004197634 in words is "sixty-one billion, four million, one hundred ninety-seven thousand, six hundred thirty-four".