72974377719 has 24 divisors (see below), whose sum is σ = 105592032000. Its totient is φ = 48564469008.

The previous prime is 72974377643. The next prime is 72974377741. The reversal of 72974377719 is 91777347927.

It is not a de Polignac number, because 72974377719 - 2¹⁵ = 72974344951 is a prime.

It is a super-2 number, since 2×72974377719² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72974377919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20854032 + ... + 20857530.

It is an arithmetic number, because the mean of its divisors is an integer number (4399668000).

Almost surely, 2^72974377719 is an apocalyptic number.

72974377719 is a deficient number, since it is larger than the sum of its proper divisors (32617654281).

72974377719 is a wasteful number, since it uses less digits than its factorization.

72974377719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6899 (or 6896 counting only the distinct ones).

The product of its digits is 32672808, while the sum is 63.

The spelling of 72974377719 in words is "seventy-two billion, nine hundred seventy-four million, three hundred seventy-seven thousand, seven hundred nineteen".