6869890690 has 32 divisors (see below), whose sum is σ = 13396803840. Its totient is φ = 2521377984.

The previous prime is 6869890681. The next prime is 6869890691. The reversal of 6869890690 is 960989686.

It is a super-2 number, since 2×6869890690² = 94390796185097352200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6869890691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136510 + ... + 179929.

It is an arithmetic number, because the mean of its divisors is an integer number (418650120).

Almost surely, 2^6869890690 is an apocalyptic number.

6869890690 is a deficient number, since it is larger than the sum of its proper divisors (6526913150).

6869890690 is a wasteful number, since it uses less digits than its factorization.

6869890690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316626.

The product of its (nonzero) digits is 10077696, while the sum is 61.

The square root of 6869890690 is about 82884.8037338570. The cubic root of 6869890690 is about 1901.0050721160.

The spelling of 6869890690 in words is "six billion, eight hundred sixty-nine million, eight hundred ninety thousand, six hundred ninety".