1879919145 has 64 divisors (see below), whose sum is σ = 3755727360. Its totient is φ = 885240576.

The previous prime is 1879919131. The next prime is 1879919149. The reversal of 1879919145 is 5419199781.

It is not a de Polignac number, because 1879919145 - 2⁷ = 1879919017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1879919091 and 1879919100.

It is not an unprimeable number, because it can be changed into a prime (1879919149) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17079 + ... + 63651.

It is an arithmetic number, because the mean of its divisors is an integer number (58683240).

Almost surely, 2^1879919145 is an apocalyptic number.

1879919145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1879919145 is a deficient number, since it is larger than the sum of its proper divisors (1875808215).

1879919145 is a wasteful number, since it uses less digits than its factorization.

1879919145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46623 (or 46617 counting only the distinct ones).

The product of its digits is 816480, while the sum is 54.

The square root of 1879919145 is about 43358.0343765720. The cubic root of 1879919145 is about 1234.1834648026.

It can be divided in two parts, 187991 and 9145, that added together give a square (197136 = 444²).

The spelling of 1879919145 in words is "one billion, eight hundred seventy-nine million, nine hundred nineteen thousand, one hundred forty-five".