136278909319 has 18 divisors (see below), whose sum is σ = 163807369272. Its totient is φ = 113042374200.

The previous prime is 136278909301. The next prime is 136278909337. The reversal of 136278909319 is 913909872631.

It is an interprime number because it is at equal distance from previous prime (136278909301) and next prime (136278909337).

It is not a de Polignac number, because 136278909319 - 2¹⁹ = 136278385031 is a prime.

It is a super-2 number, since 2×136278909319² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136278909719) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1399947 + ... + 1494124.

It is an arithmetic number, because the mean of its divisors is an integer number (9100409404).

Almost surely, 2^136278909319 is an apocalyptic number.

136278909319 is a deficient number, since it is larger than the sum of its proper divisors (27528459953).

136278909319 is an equidigital number, since it uses as much as digits as its factorization.

136278909319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894147 (or 2894109 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 58.

The spelling of 136278909319 in words is "one hundred thirty-six billion, two hundred seventy-eight million, nine hundred nine thousand, three hundred nineteen".