11621691480 has 64 divisors (see below), whose sum is σ = 39845802240. Its totient is φ = 2656386432.

The previous prime is 11621691443. The next prime is 11621691503. The reversal of 11621691480 is 8419612611.

It is a congruent number.

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, 6916834 + ... + 6918513.

It is an arithmetic number, because the mean of its divisors is an integer number (622590660).

Almost surely, 2^11621691480 is an apocalyptic number.

11621691480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11621691480 is an abundant number, since it is smaller than the sum of its proper divisors (28224110760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11621691480 is a wasteful number, since it uses less digits than its factorization.

11621691480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13835368 (or 13835364 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The spelling of 11621691480 in words is "eleven billion, six hundred twenty-one million, six hundred ninety-one thousand, four hundred eighty".