149642794279 has 16 divisors (see below), whose sum is σ = 173769408000. Its totient is φ = 127430867520.

The previous prime is 149642794187. The next prime is 149642794331. The reversal of 149642794279 is 972497246941.

It is not a de Polignac number, because 149642794279 - 2²⁵ = 149609239847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149642794279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149642794079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4003839 + ... + 4041040.

It is an arithmetic number, because the mean of its divisors is an integer number (10860588000).

Almost surely, 2^149642794279 is an apocalyptic number.

149642794279 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

149642794279 is a deficient number, since it is larger than the sum of its proper divisors (24126613721).

149642794279 is a wasteful number, since it uses less digits than its factorization.

149642794279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8044998.

The product of its digits is 54867456, while the sum is 64.

The spelling of 149642794279 in words is "one hundred forty-nine billion, six hundred forty-two million, seven hundred ninety-four thousand, two hundred seventy-nine".