131351436464 has 40 divisors (see below), whose sum is σ = 255979887072. Its totient is φ = 65292341760.

The previous prime is 131351436449. The next prime is 131351436473. The reversal of 131351436464 is 464634153131.

It is a super-2 number, since 2×131351436464² (a number of 23 digits) contains 22 as substring.

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, 13875797 + ... + 13885259.

Almost surely, 2^131351436464 is an apocalyptic number.

It is an amenable number.

131351436464 is a deficient number, since it is larger than the sum of its proper divisors (124628450608).

131351436464 is a wasteful number, since it uses less digits than its factorization.

131351436464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14445 (or 14439 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

Adding to 131351436464 its reverse (464634153131), we get a palindrome (595985589595).

The spelling of 131351436464 in words is "one hundred thirty-one billion, three hundred fifty-one million, four hundred thirty-six thousand, four hundred sixty-four".