61075587074 has 4 divisors (see below), whose sum is σ = 91613380614. Its totient is φ = 30537793536.

The previous prime is 61075587071. The next prime is 61075587103. The reversal of 61075587074 is 47078557016.

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., 60779506225 + 296080849 = 246535^2 + 17207^2 .

It is not an unprimeable number, because it can be changed into a prime (61075587071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15268896767 + ... + 15268896770.

Almost surely, 2^61075587074 is an apocalyptic number.

61075587074 is a deficient number, since it is larger than the sum of its proper divisors (30537793540).

61075587074 is a wasteful number, since it uses less digits than its factorization.

61075587074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30537793539.

The product of its (nonzero) digits is 1646400, while the sum is 50.

The spelling of 61075587074 in words is "sixty-one billion, seventy-five million, five hundred eighty-seven thousand, seventy-four".