2150864694 has 24 divisors (see below), whose sum is σ = 5083862472. Its totient is φ = 651777120.

The previous prime is 2150864693. The next prime is 2150864731. The reversal of 2150864694 is 4964680512.

2150864694 is a `hidden beast` number, since 21 + 508 + 64 + 69 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150864693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5431279 + ... + 5431674.

It is an arithmetic number, because the mean of its divisors is an integer number (211827603).

Almost surely, 2^2150864694 is an apocalyptic number.

2150864694 is an abundant number, since it is smaller than the sum of its proper divisors (2932997778).

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

2150864694 is a wasteful number, since it uses less digits than its factorization.

2150864694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10862972 (or 10862969 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 2150864694 is about 46377.4157753534. The cubic root of 2150864694 is about 1290.8358851494.

The spelling of 2150864694 in words is "two billion, one hundred fifty million, eight hundred sixty-four thousand, six hundred ninety-four".