139308247464 has 64 divisors (see below), whose sum is σ = 368933927040. Its totient is φ = 43683594240.

The previous prime is 139308247433. The next prime is 139308247487. The reversal of 139308247464 is 464742803931.

It is a happy number.

It is a super-2 number, since 2×139308247464² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 781309 + ... + 942899.

It is an arithmetic number, because the mean of its divisors is an integer number (5764592610).

Almost surely, 2^139308247464 is an apocalyptic number.

It is an amenable number.

139308247464 is an abundant number, since it is smaller than the sum of its proper divisors (229625679576).

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

139308247464 is a wasteful number, since it uses less digits than its factorization.

139308247464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163730 (or 163726 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 51.

The spelling of 139308247464 in words is "one hundred thirty-nine billion, three hundred eight million, two hundred forty-seven thousand, four hundred sixty-four".