11880400730 has 48 divisors (see below), whose sum is σ = 23738492232. Its totient is φ = 4277328000.

The previous prime is 11880400699. The next prime is 11880400747. The reversal of 11880400730 is 3700408811.

It can be written as a sum of positive squares in 4 ways, for example, as 11321598409 + 558802321 = 106403^2 + 23639^2 .

It is a super-2 number, since 2×11880400730² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73604 + ... + 170816.

Almost surely, 2^11880400730 is an apocalyptic number.

11880400730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11880400730 is a deficient number, since it is larger than the sum of its proper divisors (11858091502).

11880400730 is a wasteful number, since it uses less digits than its factorization.

11880400730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97343 (or 97332 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 11880400730 in words is "eleven billion, eight hundred eighty million, four hundred thousand, seven hundred thirty".