11490972451 has 16 divisors (see below), whose sum is σ = 13546440640. Its totient is φ = 9541307520.

The previous prime is 11490972403. The next prime is 11490972481. The reversal of 11490972451 is 15427909411.

11490972451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11490972451 - 2¹⁵ = 11490939683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11490972398 and 11490972407.

It is not an unprimeable number, because it can be changed into a prime (11490972481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37560 + ... + 156181.

It is an arithmetic number, because the mean of its divisors is an integer number (846652540).

Almost surely, 2^11490972451 is an apocalyptic number.

11490972451 is a deficient number, since it is larger than the sum of its proper divisors (2055468189).

11490972451 is a wasteful number, since it uses less digits than its factorization.

11490972451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194014.

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 11490972451 in words is "eleven billion, four hundred ninety million, nine hundred seventy-two thousand, four hundred fifty-one".