136421848274525 has 24 divisors (see below), whose sum is σ = 186066691618368. Its totient is φ = 99215889630000.

The previous prime is 136421848274521. The next prime is 136421848274557. The reversal of 136421848274525 is 525472848124631.

It is not a de Polignac number, because 136421848274525 - 2² = 136421848274521 is a prime.

It is a super-2 number, since 2×136421848274525² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136421848274521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2049881801 + ... + 2049948350.

It is an arithmetic number, because the mean of its divisors is an integer number (7752778817432).

Almost surely, 2^{136421848274525} is an apocalyptic number.

It is an amenable number.

136421848274525 is a deficient number, since it is larger than the sum of its proper divisors (49644843343843).

136421848274525 is an equidigital number, since it uses as much as digits as its factorization.

136421848274525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4099830194 (or 4099830167 counting only the distinct ones).

The product of its digits is 103219200, while the sum is 62.

The spelling of 136421848274525 in words is "one hundred thirty-six trillion, four hundred twenty-one billion, eight hundred forty-eight million, two hundred seventy-four thousand, five hundred twenty-five".