73407131869 has 8 divisors (see below), whose sum is σ = 75720335960. Its totient is φ = 71111255616.

The previous prime is 73407131857. The next prime is 73407131887. The reversal of 73407131869 is 96813170437.

It can be written as a sum of positive squares in 4 ways, for example, as 60000502500 + 13406629369 = 244950^2 + 115787^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 73407131869 - 2¹¹ = 73407129821 is a prime.

It is a super-2 number, since 2×73407131869² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73407131839) 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, 4323354 + ... + 4340299.

It is an arithmetic number, because the mean of its divisors is an integer number (9465041995).

Almost surely, 2^73407131869 is an apocalyptic number.

It is an amenable number.

73407131869 is a deficient number, since it is larger than the sum of its proper divisors (2313204091).

73407131869 is a wasteful number, since it uses less digits than its factorization.

73407131869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8663919.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 73407131869 in words is "seventy-three billion, four hundred seven million, one hundred thirty-one thousand, eight hundred sixty-nine".