154027913889 has 4 divisors (see below), whose sum is σ = 205370551856. Its totient is φ = 102685275924.

The previous prime is 154027913863. The next prime is 154027913899. The reversal of 154027913889 is 988319720451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 154027913889 - 2⁷ = 154027913761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154027913849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25671318979 + ... + 25671318984.

It is an arithmetic number, because the mean of its divisors is an integer number (51342637964).

Almost surely, 2^154027913889 is an apocalyptic number.

It is an amenable number.

154027913889 is a deficient number, since it is larger than the sum of its proper divisors (51342637967).

154027913889 is an equidigital number, since it uses as much as digits as its factorization.

154027913889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51342637966.

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 154027913889 in words is "one hundred fifty-four billion, twenty-seven million, nine hundred thirteen thousand, eight hundred eighty-nine".