12454345140 has 48 divisors (see below), whose sum is σ = 34885190592. Its totient is φ = 3319918336.

The previous prime is 12454345117. The next prime is 12454345193. The reversal of 12454345140 is 4154345421.

It is a happy number.

It is a super-2 number, since 2×12454345140² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 129247 + ... + 203993.

It is an arithmetic number, because the mean of its divisors is an integer number (726774804).

Almost surely, 2^12454345140 is an apocalyptic number.

12454345140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12454345140 is an abundant number, since it is smaller than the sum of its proper divisors (22430845452).

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

12454345140 is a wasteful number, since it uses less digits than its factorization.

12454345140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77536 (or 77534 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 12454345140 in words is "twelve billion, four hundred fifty-four million, three hundred forty-five thousand, one hundred forty".