72777102613 has 8 divisors (see below), whose sum is σ = 73709884800. Its totient is φ = 71844609408.

The previous prime is 72777102589. The next prime is 72777102623. The reversal of 72777102613 is 31620177727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72777102613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72777102613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72777102623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459570 + ... + 597292.

It is an arithmetic number, because the mean of its divisors is an integer number (9213735600).

Almost surely, 2^72777102613 is an apocalyptic number.

It is an amenable number.

72777102613 is a deficient number, since it is larger than the sum of its proper divisors (932782187).

72777102613 is a wasteful number, since it uses less digits than its factorization.

72777102613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144491.

The product of its (nonzero) digits is 172872, while the sum is 43.

The spelling of 72777102613 in words is "seventy-two billion, seven hundred seventy-seven million, one hundred two thousand, six hundred thirteen".