11623819730 has 32 divisors (see below), whose sum is σ = 22229357040. Its totient is φ = 4367865600.

The previous prime is 11623819667. The next prime is 11623819747. The reversal of 11623819730 is 3791832611.

It can be written as a sum of positive squares in 8 ways, for example, as 9920359201 + 1703460529 = 99601^2 + 41273^2 .

It is a super-2 number, since 2×11623819730² (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 15 ways as a sum of consecutive naturals, for example, 530921 + ... + 552380.

Almost surely, 2^11623819730 is an apocalyptic number.

11623819730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11623819730 is a deficient number, since it is larger than the sum of its proper divisors (10605537310).

11623819730 is a wasteful number, since it uses less digits than its factorization.

11623819730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083374.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 11623819730 in words is "eleven billion, six hundred twenty-three million, eight hundred nineteen thousand, seven hundred thirty".