61452351154 has 4 divisors (see below), whose sum is σ = 92178526734. Its totient is φ = 30726175576.

The previous prime is 61452351131. The next prime is 61452351167. The reversal of 61452351154 is 45115325416.

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., 56817873225 + 4634477929 = 238365^2 + 68077^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15363087787 + ... + 15363087790.

Almost surely, 2^61452351154 is an apocalyptic number.

61452351154 is a deficient number, since it is larger than the sum of its proper divisors (30726175580).

61452351154 is a wasteful number, since it uses less digits than its factorization.

61452351154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30726175579.

The product of its digits is 72000, while the sum is 37.

The spelling of 61452351154 in words is "sixty-one billion, four hundred fifty-two million, three hundred fifty-one thousand, one hundred fifty-four".