155030428879 has 4 divisors (see below), whose sum is σ = 155398672600. Its totient is φ = 154662185160.

The previous prime is 155030428849. The next prime is 155030428907. The reversal of 155030428879 is 978824030551.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155030428879 - 2¹⁵ = 155030396111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155030428849) 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, 184121229 + ... + 184122070.

It is an arithmetic number, because the mean of its divisors is an integer number (38849668150).

Almost surely, 2^155030428879 is an apocalyptic number.

155030428879 is a deficient number, since it is larger than the sum of its proper divisors (368243721).

155030428879 is an equidigital number, since it uses as much as digits as its factorization.

155030428879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368243720.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 155030428879 in words is "one hundred fifty-five billion, thirty million, four hundred twenty-eight thousand, eight hundred seventy-nine".