149801678628 has 24 divisors (see below), whose sum is σ = 399471143232. Its totient is φ = 42800479584.

The previous prime is 149801678623. The next prime is 149801678659. The reversal of 149801678628 is 826876108941.

It is not an unprimeable number, because it can be changed into a prime (149801678623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 891676575 + ... + 891676742.

It is an arithmetic number, because the mean of its divisors is an integer number (16644630968).

Almost surely, 2^149801678628 is an apocalyptic number.

It is an amenable number.

149801678628 is an abundant number, since it is smaller than the sum of its proper divisors (249669464604).

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

149801678628 is a wasteful number, since it uses less digits than its factorization.

149801678628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783353331 (or 1783353329 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 60.

The spelling of 149801678628 in words is "one hundred forty-nine billion, eight hundred one million, six hundred seventy-eight thousand, six hundred twenty-eight".