154742215772 has 24 divisors (see below), whose sum is σ = 271882934400. Its totient is φ = 77061496176.

The previous prime is 154742215763. The next prime is 154742215781. The reversal of 154742215772 is 277512247451.

It is an interprime number because it is at equal distance from previous prime (154742215763) and next prime (154742215781).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6699179 + ... + 6722237.

It is an arithmetic number, because the mean of its divisors is an integer number (11328455600).

Almost surely, 2^154742215772 is an apocalyptic number.

It is an amenable number.

154742215772 is a deficient number, since it is larger than the sum of its proper divisors (117140718628).

154742215772 is a wasteful number, since it uses less digits than its factorization.

154742215772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29705 (or 29703 counting only the distinct ones).

The product of its digits is 1097600, while the sum is 47.

The spelling of 154742215772 in words is "one hundred fifty-four billion, seven hundred forty-two million, two hundred fifteen thousand, seven hundred seventy-two".