5623406777890 has 32 divisors (see below), whose sum is σ = 11340767289024. Its totient is φ = 1989608293440.

The previous prime is 5623406777861. The next prime is 5623406777893. The reversal of 5623406777890 is 987776043265.

It is not an unprimeable number, because it can be changed into a prime (5623406777893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690832144 + ... + 690840283.

It is an arithmetic number, because the mean of its divisors is an integer number (354398977782).

Almost surely, 2^{5623406777890} is an apocalyptic number.

5623406777890 is an abundant number, since it is smaller than the sum of its proper divisors (5717360511134).

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

5623406777890 is a wasteful number, since it uses less digits than its factorization.

5623406777890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381672482.

The product of its (nonzero) digits is 106686720, while the sum is 64.

The spelling of 5623406777890 in words is "five trillion, six hundred twenty-three billion, four hundred six million, seven hundred seventy-seven thousand, eight hundred ninety".