189795263142 has 16 divisors (see below), whose sum is σ = 383138102592. Its totient is φ = 62673825000.

The previous prime is 189795263137. The next prime is 189795263197. The reversal of 189795263142 is 241362597981.

It is a super-2 number, since 2×189795263142² (a number of 23 digits) contains 22 as substring.

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, 147814984 + ... + 147816267.

It is an arithmetic number, because the mean of its divisors is an integer number (23946131412).

Almost surely, 2^189795263142 is an apocalyptic number.

189795263142 is an abundant number, since it is smaller than the sum of its proper divisors (193342839450).

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

189795263142 is a wasteful number, since it uses less digits than its factorization.

189795263142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295631363.

The product of its digits is 6531840, while the sum is 57.

The spelling of 189795263142 in words is "one hundred eighty-nine billion, seven hundred ninety-five million, two hundred sixty-three thousand, one hundred forty-two".