11953333690 has 16 divisors (see below), whose sum is σ = 21868723080. Its totient is φ = 4702950720.

The previous prime is 11953333687. The next prime is 11953333757. The reversal of 11953333690 is 9633335911.

It can be written as a sum of positive squares in 4 ways, for example, as 2213420209 + 9739913481 = 47047^2 + 98691^2 .

It is a super-2 number, since 2×11953333690² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9797205 + ... + 9798424.

Almost surely, 2^11953333690 is an apocalyptic number.

11953333690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11953333690 is a deficient number, since it is larger than the sum of its proper divisors (9915389390).

11953333690 is a wasteful number, since it uses less digits than its factorization.

11953333690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19595697.

The product of its (nonzero) digits is 196830, while the sum is 43.

It can be divided in two parts, 119 and 53333690, that added together give a square (53333809 = 7303²).

The spelling of 11953333690 in words is "eleven billion, nine hundred fifty-three million, three hundred thirty-three thousand, six hundred ninety".