1979222619 has 32 divisors (see below), whose sum is σ = 3001515264. Its totient is φ = 1149482880.

The previous prime is 1979222617. The next prime is 1979222633. The reversal of 1979222619 is 9162229791.

It is not a de Polignac number, because 1979222619 - 2¹ = 1979222617 is a prime.

It is a super-2 number, since 2×1979222619² = 7834644351122438322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1979222617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62049 + ... + 88365.

It is an arithmetic number, because the mean of its divisors is an integer number (93797352).

Almost surely, 2^1979222619 is an apocalyptic number.

1979222619 is a deficient number, since it is larger than the sum of its proper divisors (1022292645).

1979222619 is a wasteful number, since it uses less digits than its factorization.

1979222619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26427.

The product of its digits is 244944, while the sum is 48.

The square root of 1979222619 is about 44488.4548956243. The cubic root of 1979222619 is about 1255.5428769356.

The spelling of 1979222619 in words is "one billion, nine hundred seventy-nine million, two hundred twenty-two thousand, six hundred nineteen".