13907260421 has 2 divisors, whose sum is σ = 13907260422. Its totient is φ = 13907260420.

The previous prime is 13907260403. The next prime is 13907260427. The reversal of 13907260421 is 12406270931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13863885025 + 43375396 = 117745^2 + 6586^2 .

It is a cyclic number.

It is not a de Polignac number, because 13907260421 - 2⁶ = 13907260357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13907260427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6953630210 + 6953630211.

It is an arithmetic number, because the mean of its divisors is an integer number (6953630211).

Almost surely, 2^13907260421 is an apocalyptic number.

It is an amenable number.

13907260421 is a deficient number, since it is larger than the sum of its proper divisors (1).

13907260421 is an equidigital number, since it uses as much as digits as its factorization.

13907260421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 13907260421 in words is "thirteen billion, nine hundred seven million, two hundred sixty thousand, four hundred twenty-one".