27972907154 has 16 divisors (see below), whose sum is σ = 42040291680. Its totient is φ = 13959496320.

The previous prime is 27972907099. The next prime is 27972907213. The reversal of 27972907154 is 45170927972.

It is a junction number, because it is equal to n+sod(n) for n = 27972907096 and 27972907105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5406989 + ... + 5412159.

It is an arithmetic number, because the mean of its divisors is an integer number (2627518230).

Almost surely, 2^27972907154 is an apocalyptic number.

27972907154 is a deficient number, since it is larger than the sum of its proper divisors (14067384526).

27972907154 is a wasteful number, since it uses less digits than its factorization.

27972907154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9865.

The product of its (nonzero) digits is 2222640, while the sum is 53.

The spelling of 27972907154 in words is "twenty-seven billion, nine hundred seventy-two million, nine hundred seven thousand, one hundred fifty-four".