1690780874067 has 12 divisors (see below), whose sum is σ = 2482275746704. Its totient is φ = 1108708769520.

The previous prime is 1690780874059. The next prime is 1690780874071. The reversal of 1690780874067 is 7604780870961.

It is not a de Polignac number, because 1690780874067 - 2³ = 1690780874059 is a prime.

It is a super-2 number, since 2×1690780874067² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1690780873995 and 1690780874013.

It is not an unprimeable number, because it can be changed into a prime (1690780874047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1539872743 + ... + 1539873840.

Almost surely, 2^{1690780874067} is an apocalyptic number.

1690780874067 is a deficient number, since it is larger than the sum of its proper divisors (791494872637).

1690780874067 is a wasteful number, since it uses less digits than its factorization.

1690780874067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079746650 (or 3079746647 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 63.

The spelling of 1690780874067 in words is "one trillion, six hundred ninety billion, seven hundred eighty million, eight hundred seventy-four thousand, sixty-seven".