72459297154 has 4 divisors (see below), whose sum is σ = 108688945734. Its totient is φ = 36229648576.

The previous prime is 72459297143. The next prime is 72459297181. The reversal of 72459297154 is 45179295427.

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., 59831606025 + 12627691129 = 244605^2 + 112373^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72459297095 and 72459297104.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18114824287 + ... + 18114824290.

Almost surely, 2^72459297154 is an apocalyptic number.

72459297154 is a deficient number, since it is larger than the sum of its proper divisors (36229648580).

72459297154 is a wasteful number, since it uses less digits than its factorization.

72459297154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36229648579.

The product of its digits is 6350400, while the sum is 55.

The spelling of 72459297154 in words is "seventy-two billion, four hundred fifty-nine million, two hundred ninety-seven thousand, one hundred fifty-four".