1974842565 has 8 divisors (see below), whose sum is σ = 3159748128. Its totient is φ = 1053249360.

The previous prime is 1974842563. The next prime is 1974842567. The reversal of 1974842565 is 5652484791.

It is an interprime number because it is at equal distance from previous prime (1974842563) and next prime (1974842567).

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

It is not a de Polignac number, because 1974842565 - 2¹ = 1974842563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1974842563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65828071 + ... + 65828100.

It is an arithmetic number, because the mean of its divisors is an integer number (394968516).

Almost surely, 2^1974842565 is an apocalyptic number.

1974842565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1974842565 is a deficient number, since it is larger than the sum of its proper divisors (1184905563).

1974842565 is a wasteful number, since it uses less digits than its factorization.

1974842565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131656179.

The product of its digits is 2419200, while the sum is 51.

The square root of 1974842565 is about 44439.2007691408. The cubic root of 1974842565 is about 1254.6160134863.

The spelling of 1974842565 in words is "one billion, nine hundred seventy-four million, eight hundred forty-two thousand, five hundred sixty-five".