1973762565 has 16 divisors (see below), whose sum is σ = 3231463488. Its totient is φ = 1028192256.

The previous prime is 1973762561. The next prime is 1973762569. The reversal of 1973762565 is 5652673791.

It is an interprime number because it is at equal distance from previous prime (1973762561) and next prime (1973762569).

It is not a de Polignac number, because 1973762565 - 2² = 1973762561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973762561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1529404 + ... + 1530693.

It is an arithmetic number, because the mean of its divisors is an integer number (201966468).

Almost surely, 2^1973762565 is an apocalyptic number.

1973762565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1973762565 is a deficient number, since it is larger than the sum of its proper divisors (1257700923).

1973762565 is a wasteful number, since it uses less digits than its factorization.

1973762565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060148.

The product of its digits is 2381400, while the sum is 51.

The square root of 1973762565 is about 44427.0476736864. The cubic root of 1973762565 is about 1254.3872640494.

The spelling of 1973762565 in words is "one billion, nine hundred seventy-three million, seven hundred sixty-two thousand, five hundred sixty-five".