154315421699 has 16 divisors (see below), whose sum is σ = 169032865536. Its totient is φ = 140245171200.

The previous prime is 154315421677. The next prime is 154315421707. The reversal of 154315421699 is 996124513451.

It is a cyclic number.

It is not a de Polignac number, because 154315421699 - 2²⁴ = 154298644483 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154315421609) 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, 79532 + ... + 561209.

It is an arithmetic number, because the mean of its divisors is an integer number (10564554096).

Almost surely, 2^154315421699 is an apocalyptic number.

154315421699 is a deficient number, since it is larger than the sum of its proper divisors (14717443837).

154315421699 is a wasteful number, since it uses less digits than its factorization.

154315421699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641246.

The product of its digits is 1166400, while the sum is 50.

The spelling of 154315421699 in words is "one hundred fifty-four billion, three hundred fifteen million, four hundred twenty-one thousand, six hundred ninety-nine".