72000756434 has 4 divisors (see below), whose sum is σ = 108001134654. Its totient is φ = 36000378216.

The previous prime is 72000756403. The next prime is 72000756437. The reversal of 72000756434 is 43465700027.

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., 71462655625 + 538100809 = 267325^2 + 23197^2 .

It is not an unprimeable number, because it can be changed into a prime (72000756437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18000189107 + ... + 18000189110.

Almost surely, 2^72000756434 is an apocalyptic number.

72000756434 is a deficient number, since it is larger than the sum of its proper divisors (36000378220).

72000756434 is a wasteful number, since it uses less digits than its factorization.

72000756434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36000378219.

The product of its (nonzero) digits is 141120, while the sum is 38.

The spelling of 72000756434 in words is "seventy-two billion, seven hundred fifty-six thousand, four hundred thirty-four".