61089520498 has 4 divisors (see below), whose sum is σ = 91634280750. Its totient is φ = 30544760248.

The previous prime is 61089520409. The next prime is 61089520529. The reversal of 61089520498 is 89402598016.

61089520498 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 61084605409 + 4915089 = 247153^2 + 2217^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15272380123 + ... + 15272380126.

Almost surely, 2^61089520498 is an apocalyptic number.

61089520498 is a deficient number, since it is larger than the sum of its proper divisors (30544760252).

61089520498 is a wasteful number, since it uses less digits than its factorization.

61089520498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30544760251.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 61089520498 in words is "sixty-one billion, eighty-nine million, five hundred twenty thousand, four hundred ninety-eight".