5642879155 has 4 divisors (see below), whose sum is σ = 6771454992. Its totient is φ = 4514303320.

The previous prime is 5642879111. The next prime is 5642879201. The reversal of 5642879155 is 5519782465.

It is a happy number.

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

It is not a de Polignac number, because 5642879155 - 2¹³ = 5642870963 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564287911 + ... + 564287920.

It is an arithmetic number, because the mean of its divisors is an integer number (1692863748).

Almost surely, 2^5642879155 is an apocalyptic number.

5642879155 is a deficient number, since it is larger than the sum of its proper divisors (1128575837).

5642879155 is a wasteful number, since it uses less digits than its factorization.

5642879155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128575836.

The product of its digits is 3024000, while the sum is 52.

The square root of 5642879155 is about 75119.0998015818. The cubic root of 5642879155 is about 1780.3289333409.

The spelling of 5642879155 in words is "five billion, six hundred forty-two million, eight hundred seventy-nine thousand, one hundred fifty-five".