11954003651 has 16 divisors (see below), whose sum is σ = 12509380608. Its totient is φ = 11410308000.

The previous prime is 11954003599. The next prime is 11954003657. The reversal of 11954003651 is 15630045911.

It is a cyclic number.

It is not a de Polignac number, because 11954003651 - 2⁶ = 11954003587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11954003657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672326 + ... + 689876.

It is an arithmetic number, because the mean of its divisors is an integer number (781836288).

Almost surely, 2^11954003651 is an apocalyptic number.

11954003651 is a deficient number, since it is larger than the sum of its proper divisors (555376957).

11954003651 is a wasteful number, since it uses less digits than its factorization.

11954003651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17882.

The product of its (nonzero) digits is 16200, while the sum is 35.

The spelling of 11954003651 in words is "eleven billion, nine hundred fifty-four million, three thousand, six hundred fifty-one".