72876030785 has 4 divisors (see below), whose sum is σ = 87451236948. Its totient is φ = 58300824624.

The previous prime is 72876030781. The next prime is 72876030827. The reversal of 72876030785 is 58703067827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58703067827 = 111773 ⋅525199.

It can be written as a sum of positive squares in 2 ways, for example, as 20295706369 + 52580324416 = 142463^2 + 229304^2 .

It is a cyclic number.

It is not a de Polignac number, because 72876030785 - 2² = 72876030781 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72876030781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7287603074 + ... + 7287603083.

It is an arithmetic number, because the mean of its divisors is an integer number (21862809237).

Almost surely, 2^72876030785 is an apocalyptic number.

It is an amenable number.

72876030785 is a deficient number, since it is larger than the sum of its proper divisors (14575206163).

72876030785 is a wasteful number, since it uses less digits than its factorization.

72876030785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14575206162.

The product of its (nonzero) digits is 3951360, while the sum is 53.

The spelling of 72876030785 in words is "seventy-two billion, eight hundred seventy-six million, thirty thousand, seven hundred eighty-five".