72451124949 has 8 divisors (see below), whose sum is σ = 110401714240. Its totient is φ = 41400642816.

The previous prime is 72451124947. The next prime is 72451125001. The reversal of 72451124949 is 94942115427.

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

It is not a de Polignac number, because 72451124949 - 2¹ = 72451124947 is a prime.

It is a super-2 number, since 2×72451124949² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72451124898 and 72451124907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72451124947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1725026764 + ... + 1725026805.

It is an arithmetic number, because the mean of its divisors is an integer number (13800214280).

Almost surely, 2^72451124949 is an apocalyptic number.

It is an amenable number.

72451124949 is a deficient number, since it is larger than the sum of its proper divisors (37950589291).

72451124949 is a wasteful number, since it uses less digits than its factorization.

72451124949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3450053579.

The product of its digits is 725760, while the sum is 48.

The spelling of 72451124949 in words is "seventy-two billion, four hundred fifty-one million, one hundred twenty-four thousand, nine hundred forty-nine".