139465838510 has 32 divisors (see below), whose sum is σ = 265191559200. Its totient is φ = 52662113280.

The previous prime is 139465838471. The next prime is 139465838557. The reversal of 139465838510 is 15838564931.

It is a happy number.

It is a super-2 number, since 2×139465838510² (a number of 23 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, 1252715 + ... + 1359494.

It is an arithmetic number, because the mean of its divisors is an integer number (8287236225).

Almost surely, 2^139465838510 is an apocalyptic number.

139465838510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139465838510 is a deficient number, since it is larger than the sum of its proper divisors (125725720690).

139465838510 is a wasteful number, since it uses less digits than its factorization.

139465838510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612516.

The product of its (nonzero) digits is 3110400, while the sum is 53.

The spelling of 139465838510 in words is "one hundred thirty-nine billion, four hundred sixty-five million, eight hundred thirty-eight thousand, five hundred ten".