1974895945 has 8 divisors (see below), whose sum is σ = 2585318400. Its totient is φ = 1436287920.

The previous prime is 1974895927. The next prime is 1974895997. The reversal of 1974895945 is 5495984791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1974895945 - 2¹⁹ = 1974371657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17953545 + ... + 17953654.

It is an arithmetic number, because the mean of its divisors is an integer number (323164800).

Almost surely, 2^1974895945 is an apocalyptic number.

It is an amenable number.

1974895945 is a deficient number, since it is larger than the sum of its proper divisors (610422455).

1974895945 is a wasteful number, since it uses less digits than its factorization.

1974895945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35907215.

The product of its digits is 16329600, while the sum is 61.

The square root of 1974895945 is about 44439.8013609422. The cubic root of 1974895945 is about 1254.6273174759.

The spelling of 1974895945 in words is "one billion, nine hundred seventy-four million, eight hundred ninety-five thousand, nine hundred forty-five".