13997752776 has 192 divisors, whose sum is σ = 45806112000. Its totient is φ = 3948497280.

The previous prime is 13997752759. The next prime is 13997752787. The reversal of 13997752776 is 67725779931.

13997752776 is a `hidden beast` number, since 1 + 39 + 9 + 7 + 7 + 527 + 76 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

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 47 ways as a sum of consecutive naturals, for example, 827766 + ... + 844506.

It is an arithmetic number, because the mean of its divisors is an integer number (238573500).

Almost surely, 2^13997752776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13997752776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22903056000).

13997752776 is an abundant number, since it is smaller than the sum of its proper divisors (31808359224).

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

13997752776 is a wasteful number, since it uses less digits than its factorization.

13997752776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16849 (or 16832 counting only the distinct ones).

The product of its digits is 35006580, while the sum is 63.

The spelling of 13997752776 in words is "thirteen billion, nine hundred ninety-seven million, seven hundred fifty-two thousand, seven hundred seventy-six".