40245176001421 has 2 divisors, whose sum is σ = 40245176001422. Its totient is φ = 40245176001420.

The previous prime is 40245176001379. The next prime is 40245176001431. The reversal of 40245176001421 is 12410067154204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29878096159396 + 10367079842025 = 5466086^2 + 3219795^2 .

It is a cyclic number.

It is not a de Polignac number, because 40245176001421 - 2²¹ = 40245173904269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40245176001431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20122588000710 + 20122588000711.

It is an arithmetic number, because the mean of its divisors is an integer number (20122588000711).

Almost surely, 2^{40245176001421} is an apocalyptic number.

It is an amenable number.

40245176001421 is a deficient number, since it is larger than the sum of its proper divisors (1).

40245176001421 is an equidigital number, since it uses as much as digits as its factorization.

40245176001421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 40245176001421 in words is "forty trillion, two hundred forty-five billion, one hundred seventy-six million, one thousand, four hundred twenty-one".