23490697906 has 8 divisors (see below), whose sum is σ = 37946512044. Its totient is φ = 10841860560.

The previous prime is 23490697859. The next prime is 23490697933. The reversal of 23490697906 is 60979609432.

It can be written as a sum of positive squares in 2 ways, for example, as 23266926225 + 223771681 = 152535^2 + 14959^2 .

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

It is a super-2 number, since 2×23490697906² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451744165 + ... + 451744216.

Almost surely, 2^23490697906 is an apocalyptic number.

23490697906 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

23490697906 is a deficient number, since it is larger than the sum of its proper divisors (14455814138).

23490697906 is a wasteful number, since it uses less digits than its factorization.

23490697906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903488396.

The product of its (nonzero) digits is 4408992, while the sum is 55.

The spelling of 23490697906 in words is "twenty-three billion, four hundred ninety million, six hundred ninety-seven thousand, nine hundred six".