1197828825765 has 32 divisors (see below), whose sum is σ = 2251583139456. Its totient is φ = 536091221760.

The previous prime is 1197828825751. The next prime is 1197828825779. The reversal of 1197828825765 is 5675288287911.

It is an interprime number because it is at equal distance from previous prime (1197828825751) and next prime (1197828825779).

It is not a de Polignac number, because 1197828825765 - 2⁹ = 1197828825253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1197828825765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279212034 + ... + 279216323.

It is an arithmetic number, because the mean of its divisors is an integer number (70361973108).

Almost surely, 2^{1197828825765} is an apocalyptic number.

1197828825765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1197828825765 is a deficient number, since it is larger than the sum of its proper divisors (1053754313691).

1197828825765 is a wasteful number, since it uses less digits than its factorization.

1197828825765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558428389.

The product of its digits is 135475200, while the sum is 69.

The spelling of 1197828825765 in words is "one trillion, one hundred ninety-seven billion, eight hundred twenty-eight million, eight hundred twenty-five thousand, seven hundred sixty-five".