1691452022613 has 8 divisors (see below), whose sum is σ = 2255371228800. Its totient is φ = 1127583749088.

The previous prime is 1691452022609. The next prime is 1691452022633. The reversal of 1691452022613 is 3162202541961.

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

It is not a de Polignac number, because 1691452022613 - 2² = 1691452022609 is a prime.

It is a super-2 number, since 2×1691452022613² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1691452022633) 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, 12655608 + ... + 12788561.

It is an arithmetic number, because the mean of its divisors is an integer number (281921403600).

Almost surely, 2^{1691452022613} is an apocalyptic number.

It is an amenable number.

1691452022613 is a deficient number, since it is larger than the sum of its proper divisors (563919206187).

1691452022613 is a wasteful number, since it uses less digits than its factorization.

1691452022613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25466331.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 1691452022613 in words is "one trillion, six hundred ninety-one billion, four hundred fifty-two million, twenty-two thousand, six hundred thirteen".