2172294767916 has 216 divisors, whose sum is σ = 6893888745744. Its totient is φ = 571667362560.

The previous prime is 2172294767861. The next prime is 2172294767933. The reversal of 2172294767916 is 6197674922712.

2172294767916 is a `hidden beast` number, since 2 + 1 + 72 + 2 + 9 + 476 + 7 + 91 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10468911 + ... + 10674393.

Almost surely, 2^{2172294767916} is an apocalyptic number.

2172294767916 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2172294767916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3446944372872).

2172294767916 is an abundant number, since it is smaller than the sum of its proper divisors (4721593977828).

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

2172294767916 is a wasteful number, since it uses less digits than its factorization.

2172294767916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205981 (or 205969 counting only the distinct ones).

The product of its digits is 32006016, while the sum is 63.

The spelling of 2172294767916 in words is "two trillion, one hundred seventy-two billion, two hundred ninety-four million, seven hundred sixty-seven thousand, nine hundred sixteen".