1979211425 has 6 divisors (see below), whose sum is σ = 2454222198. Its totient is φ = 1583369120.

The previous prime is 1979211371. The next prime is 1979211469. The reversal of 1979211425 is 5241129791.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 413268241 + 1565943184 = 20329^2 + 39572^2 .

It is not a de Polignac number, because 1979211425 - 2¹⁴ = 1979195041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39584204 + ... + 39584253.

It is an arithmetic number, because the mean of its divisors is an integer number (409037033).

Almost surely, 2^1979211425 is an apocalyptic number.

It is an amenable number.

1979211425 is a deficient number, since it is larger than the sum of its proper divisors (475010773).

1979211425 is an equidigital number, since it uses as much as digits as its factorization.

1979211425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79168467 (or 79168462 counting only the distinct ones).

The product of its digits is 45360, while the sum is 41.

The square root of 1979211425 is about 44488.3290875259. The cubic root of 1979211425 is about 1255.5405099165.

The spelling of 1979211425 in words is "one billion, nine hundred seventy-nine million, two hundred eleven thousand, four hundred twenty-five".