149968578942 has 48 divisors (see below), whose sum is σ = 399916214880. Its totient is φ = 39552152256.

The previous prime is 149968578913. The next prime is 149968578971. The reversal of 149968578942 is 249875869941.

149968578942 is a `hidden beast` number, since 1 + 4 + 9 + 9 + 6 + 8 + 578 + 9 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (149968578913) and next prime (149968578971).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45776317 + ... + 45779592.

It is an arithmetic number, because the mean of its divisors is an integer number (8331587810).

Almost surely, 2^149968578942 is an apocalyptic number.

149968578942 is an abundant number, since it is smaller than the sum of its proper divisors (249947635938).

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

149968578942 is a wasteful number, since it uses less digits than its factorization.

149968578942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91555937 (or 91555934 counting only the distinct ones).

The product of its digits is 313528320, while the sum is 72.

The spelling of 149968578942 in words is "one hundred forty-nine billion, nine hundred sixty-eight million, five hundred seventy-eight thousand, nine hundred forty-two".