26431232160 has 96 divisors (see below), whose sum is σ = 83439683712. Its totient is φ = 7032980480.

The previous prime is 26431232147. The next prime is 26431232209. The reversal of 26431232160 is 6123213462.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×26431232160² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161557 + ... + 281003.

It is an arithmetic number, because the mean of its divisors is an integer number (869163372).

Almost surely, 2^26431232160 is an apocalyptic number.

26431232160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26431232160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41719841856).

26431232160 is an abundant number, since it is smaller than the sum of its proper divisors (57008451552).

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

26431232160 is a wasteful number, since it uses less digits than its factorization.

26431232160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119926 (or 119918 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The spelling of 26431232160 in words is "twenty-six billion, four hundred thirty-one million, two hundred thirty-two thousand, one hundred sixty".