10400064523 has 12 divisors (see below), whose sum is σ = 11003770728. Its totient is φ = 9827985600.

The previous prime is 10400064511. The next prime is 10400064527. The reversal of 10400064523 is 32546000401.

It is not a de Polignac number, because 10400064523 - 2⁹ = 10400064011 is a prime.

It is a super-2 number, since 2×10400064523² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10400064527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108840 + ... + 180682.

It is an arithmetic number, because the mean of its divisors is an integer number (916980894).

Almost surely, 2^10400064523 is an apocalyptic number.

10400064523 is a deficient number, since it is larger than the sum of its proper divisors (603706205).

10400064523 is an equidigital number, since it uses as much as digits as its factorization.

10400064523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72282 (or 72263 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 10400064523 its reverse (32546000401), we get a palindrome (42946064924).

The spelling of 10400064523 in words is "ten billion, four hundred million, sixty-four thousand, five hundred twenty-three".