72876867827 has 4 divisors (see below), whose sum is σ = 72877730640. Its totient is φ = 72876005016.

The previous prime is 72876867823. The next prime is 72876867841.

72876867827 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72876867827 - 2² = 72876867823 is a prime.

It is a super-2 number, since 2×72876867827² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72876867823) 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, 289052 + ... + 478857.

It is an arithmetic number, because the mean of its divisors is an integer number (18219432660).

Almost surely, 2^72876867827 is an apocalyptic number.

72876867827 is a deficient number, since it is larger than the sum of its proper divisors (862813).

72876867827 is an equidigital number, since it uses as much as digits as its factorization.

72876867827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862812.

The product of its digits is 177020928, while the sum is 68.

The spelling of 72876867827 in words is "seventy-two billion, eight hundred seventy-six million, eight hundred sixty-seven thousand, eight hundred twenty-seven".