1699399591344 has 120 divisors (see below), whose sum is σ = 5853487526432. Its totient is φ = 448193295360.

The previous prime is 1699399591321. The next prime is 1699399591363. The reversal of 1699399591344 is 4431959939961.

1699399591344 is a `hidden beast` number, since 1 + 69 + 93 + 99 + 59 + 1 + 344 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64829677 + ... + 64855884.

Almost surely, 2^{1699399591344} is an apocalyptic number.

1699399591344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1699399591344 is an abundant number, since it is smaller than the sum of its proper divisors (4154087935088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1699399591344 is a wasteful number, since it uses less digits than its factorization.

1699399591344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129685595 (or 129685586 counting only the distinct ones).

The product of its digits is 255091680, while the sum is 72.

The spelling of 1699399591344 in words is "one trillion, six hundred ninety-nine billion, three hundred ninety-nine million, five hundred ninety-one thousand, three hundred forty-four".