72373540869 has 24 divisors (see below), whose sum is σ = 120531083712. Its totient is φ = 40990320000.

The previous prime is 72373540859. The next prime is 72373540879. The reversal of 72373540869 is 96804537327.

72373540869 is a `hidden beast` number, since 7 + 2 + 37 + 3 + 540 + 8 + 69 = 666.

It is an interprime number because it is at equal distance from previous prime (72373540859) and next prime (72373540879).

It is not a de Polignac number, because 72373540869 - 2⁷ = 72373540741 is a prime.

It is a super-2 number, since 2×72373540869² (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 (72373540859) 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, 5076007 + ... + 5090244.

It is an arithmetic number, because the mean of its divisors is an integer number (5022128488).

Almost surely, 2^72373540869 is an apocalyptic number.

It is an amenable number.

72373540869 is a deficient number, since it is larger than the sum of its proper divisors (48157542843).

72373540869 is a wasteful number, since it uses less digits than its factorization.

72373540869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10166377 (or 10166374 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 72373540869 in words is "seventy-two billion, three hundred seventy-three million, five hundred forty thousand, eight hundred sixty-nine".