1045699891755 has 32 divisors (see below), whose sum is σ = 1748631352320. Its totient is φ = 532612967040.

The previous prime is 1045699891741. The next prime is 1045699891783. The reversal of 1045699891755 is 5571989965401.

It is not a de Polignac number, because 1045699891755 - 2¹⁰ = 1045699890731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a self number, because there is not a number n which added to its sum of digits gives 1045699891755.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2184060 + ... + 2619449.

It is an arithmetic number, because the mean of its divisors is an integer number (54644729760).

Almost surely, 2^{1045699891755} is an apocalyptic number.

1045699891755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1045699891755 is a deficient number, since it is larger than the sum of its proper divisors (702931460565).

1045699891755 is a wasteful number, since it uses less digits than its factorization.

1045699891755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4804171.

The product of its (nonzero) digits is 122472000, while the sum is 69.

The spelling of 1045699891755 in words is "one trillion, forty-five billion, six hundred ninety-nine million, eight hundred ninety-one thousand, seven hundred fifty-five".