149742136278 has 96 divisors (see below), whose sum is σ = 380545978176. Its totient is φ = 41669581824.

The previous prime is 149742136277. The next prime is 149742136279. The reversal of 149742136278 is 872631247941.

149742136278 is a `hidden beast` number, since 1 + 4 + 9 + 7 + 4 + 2 + 1 + 3 + 627 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (149742136277) and next prime (149742136279).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149742136277) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 833050 + ... + 996722.

It is an arithmetic number, because the mean of its divisors is an integer number (3964020606).

Almost surely, 2^149742136278 is an apocalyptic number.

149742136278 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 149742136278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190272989088).

149742136278 is an abundant number, since it is smaller than the sum of its proper divisors (230803841898).

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

149742136278 is a wasteful number, since it uses less digits than its factorization.

149742136278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163878 (or 163875 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 149742136278 in words is "one hundred forty-nine billion, seven hundred forty-two million, one hundred thirty-six thousand, two hundred seventy-eight".