64361132431340 has 24 divisors (see below), whose sum is σ = 136144935616032. Its totient is φ = 25556537256320.

The previous prime is 64361132431339. The next prime is 64361132431391. The reversal of 64361132431340 is 4313423116346.

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, 11744729456 + ... + 11744734935.

It is an arithmetic number, because the mean of its divisors is an integer number (5672705650668).

Almost surely, 2^{64361132431340} is an apocalyptic number.

It is an amenable number.

64361132431340 is an abundant number, since it is smaller than the sum of its proper divisors (71783803184692).

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

64361132431340 is a wasteful number, since it uses less digits than its factorization.

64361132431340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23489464537 (or 23489464535 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 41.

Adding to 64361132431340 its reverse (4313423116346), we get a palindrome (68674555547686).

The spelling of 64361132431340 in words is "sixty-four trillion, three hundred sixty-one billion, one hundred thirty-two million, four hundred thirty-one thousand, three hundred forty".