2194770551831 has 24 divisors (see below), whose sum is σ = 2621770098480. Its totient is φ = 1821071366400.

The previous prime is 2194770551797. The next prime is 2194770551833. The reversal of 2194770551831 is 1381550774912.

It is not a de Polignac number, because 2194770551831 - 2¹⁰ = 2194770550807 is a prime.

It is a super-2 number, since 2×2194770551831² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2194770551833) 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, 6467240 + ... + 6798141.

It is an arithmetic number, because the mean of its divisors is an integer number (109240420770).

Almost surely, 2^{2194770551831} is an apocalyptic number.

2194770551831 is a deficient number, since it is larger than the sum of its proper divisors (426999546649).

2194770551831 is a wasteful number, since it uses less digits than its factorization.

2194770551831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13265507 (or 13265494 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 53.

The spelling of 2194770551831 in words is "two trillion, one hundred ninety-four billion, seven hundred seventy million, five hundred fifty-one thousand, eight hundred thirty-one".