1689690614458 has 32 divisors (see below), whose sum is σ = 3268904376960. Its totient is φ = 635620292160.

The previous prime is 1689690614399. The next prime is 1689690614483. The reversal of 1689690614458 is 8544160969861.

It is a junction number, because it is equal to n+sod(n) for n = 1689690614393 and 1689690614402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189168241 + ... + 189177172.

It is an arithmetic number, because the mean of its divisors is an integer number (102153261780).

Almost surely, 2^{1689690614458} is an apocalyptic number.

1689690614458 is a deficient number, since it is larger than the sum of its proper divisors (1579213762502).

1689690614458 is a wasteful number, since it uses less digits than its factorization.

1689690614458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378345462.

The product of its (nonzero) digits is 89579520, while the sum is 67.

The spelling of 1689690614458 in words is "one trillion, six hundred eighty-nine billion, six hundred ninety million, six hundred fourteen thousand, four hundred fifty-eight".