73787878746 has 48 divisors (see below), whose sum is σ = 165896500224. Its totient is φ = 24580900224.

The previous prime is 73787878709. The next prime is 73787878751. The reversal of 73787878746 is 64787878737.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 762570 + ... + 853866.

It is an arithmetic number, because the mean of its divisors is an integer number (3456177088).

Almost surely, 2^73787878746 is an apocalyptic number.

73787878746 is an abundant number, since it is smaller than the sum of its proper divisors (92108621478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73787878746 is a wasteful number, since it uses less digits than its factorization.

73787878746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92977 (or 92965 counting only the distinct ones).

The product of its digits is 619573248, while the sum is 72.

Subtracting from 73787878746 its reverse (64787878737), we obtain a palindrome (9000000009).

It can be divided in two parts, 7378787874 and 6, that multiplied together give a palindrome (44272727244).

The spelling of 73787878746 in words is "seventy-three billion, seven hundred eighty-seven million, eight hundred seventy-eight thousand, seven hundred forty-six".