7775699690 has 32 divisors (see below), whose sum is σ = 15416908416. Its totient is φ = 2800071360.

The previous prime is 7775699689. The next prime is 7775699699. The reversal of 7775699690 is 969965777.

It is a happy number.

It is a super-2 number, since 2×7775699690² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7775699699) 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, 331817 + ... + 354476.

It is an arithmetic number, because the mean of its divisors is an integer number (481778388).

Almost surely, 2^7775699690 is an apocalyptic number.

7775699690 is a deficient number, since it is larger than the sum of its proper divisors (7641208726).

7775699690 is a wasteful number, since it uses less digits than its factorization.

7775699690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686414.

The product of its (nonzero) digits is 45008460, while the sum is 65.

The square root of 7775699690 is about 88179.9279314743. The cubic root of 7775699690 is about 1981.1308448476.

The spelling of 7775699690 in words is "seven billion, seven hundred seventy-five million, six hundred ninety-nine thousand, six hundred ninety".