189625151944 has 8 divisors (see below), whose sum is σ = 355547159910. Its totient is φ = 94812575968.

The previous prime is 189625151923. The next prime is 189625151957. The reversal of 189625151944 is 449151526981.

It can be written as a sum of positive squares in only one way, i.e., 150396596100 + 39228555844 = 387810^2 + 198062^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11851571989 + ... + 11851572004.

Almost surely, 2^189625151944 is an apocalyptic number.

It is an amenable number.

189625151944 is a deficient number, since it is larger than the sum of its proper divisors (165922007966).

189625151944 is a wasteful number, since it uses less digits than its factorization.

189625151944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23703143999 (or 23703143995 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 55.

The spelling of 189625151944 in words is "one hundred eighty-nine billion, six hundred twenty-five million, one hundred fifty-one thousand, nine hundred forty-four".