6401432031512 has 32 divisors (see below), whose sum is σ = 13718342668800. Its totient is φ = 2743273207584.

The previous prime is 6401432031503. The next prime is 6401432031521. The reversal of 6401432031512 is 2151302341046.

It is an interprime number because it is at equal distance from previous prime (6401432031503) and next prime (6401432031521).

It is a super-2 number, since 2×6401432031512² (a number of 26 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 7 ways as a sum of consecutive naturals, for example, 3332462 + ... + 4889597.

It is an arithmetic number, because the mean of its divisors is an integer number (428698208400).

Almost surely, 2^{6401432031512} is an apocalyptic number.

It is an amenable number.

6401432031512 is an abundant number, since it is smaller than the sum of its proper divisors (7316910637288).

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

6401432031512 is a wasteful number, since it uses less digits than its factorization.

6401432031512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8235975 (or 8235971 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 6401432031512 its reverse (2151302341046), we get a palindrome (8552734372558).

The spelling of 6401432031512 in words is "six trillion, four hundred one billion, four hundred thirty-two million, thirty-one thousand, five hundred twelve".