11351973633 has 64 divisors (see below), whose sum is σ = 21206126592. Its totient is φ = 5206798080.

The previous prime is 11351973631. The next prime is 11351973637. The reversal of 11351973633 is 33637915311.

It is a happy number.

It is not a de Polignac number, because 11351973633 - 2¹ = 11351973631 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11351973631) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13110 + ... + 151247.

It is an arithmetic number, because the mean of its divisors is an integer number (331345728).

Almost surely, 2^11351973633 is an apocalyptic number.

11351973633 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11351973633 is a deficient number, since it is larger than the sum of its proper divisors (9854152959).

11351973633 is a wasteful number, since it uses less digits than its factorization.

11351973633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164414.

The product of its digits is 153090, while the sum is 42.

The spelling of 11351973633 in words is "eleven billion, three hundred fifty-one million, nine hundred seventy-three thousand, six hundred thirty-three".