152198721894 has 16 divisors (see below), whose sum is σ = 310140792432. Its totient is φ = 49775682528.

The previous prime is 152198721889. The next prime is 152198721901. The reversal of 152198721894 is 498127891251.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239305849 + ... + 239306484.

It is an arithmetic number, because the mean of its divisors is an integer number (19383799527).

Almost surely, 2^152198721894 is an apocalyptic number.

152198721894 is an abundant number, since it is smaller than the sum of its proper divisors (157942070538).

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

152198721894 is a wasteful number, since it uses less digits than its factorization.

152198721894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478612391.

The product of its digits is 2903040, while the sum is 57.

The spelling of 152198721894 in words is "one hundred fifty-two billion, one hundred ninety-eight million, seven hundred twenty-one thousand, eight hundred ninety-four".