12526401390 has 16 divisors (see below), whose sum is σ = 30063363408. Its totient is φ = 3340373696.

The previous prime is 12526401383. The next prime is 12526401401. The reversal of 12526401390 is 9310462521.

It is a Curzon number.

It is a congruent number.

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, 208773327 + ... + 208773386.

It is an arithmetic number, because the mean of its divisors is an integer number (1878960213).

Almost surely, 2^12526401390 is an apocalyptic number.

12526401390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12526401390 is an abundant number, since it is smaller than the sum of its proper divisors (17536962018).

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

12526401390 is a wasteful number, since it uses less digits than its factorization.

12526401390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417546723.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 12526401390 in words is "twelve billion, five hundred twenty-six million, four hundred one thousand, three hundred ninety".