7142070040621 has 2 divisors, whose sum is σ = 7142070040622. Its totient is φ = 7142070040620.

The previous prime is 7142070040613. The next prime is 7142070040669. The reversal of 7142070040621 is 1260400702417.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6292697675625 + 849372364996 = 2508525^2 + 921614^2 .

It is a cyclic number.

It is not a de Polignac number, because 7142070040621 - 2³ = 7142070040613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7142070041621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3571035020310 + 3571035020311.

It is an arithmetic number, because the mean of its divisors is an integer number (3571035020311).

Almost surely, 2^{7142070040621} is an apocalyptic number.

It is an amenable number.

7142070040621 is a deficient number, since it is larger than the sum of its proper divisors (1).

7142070040621 is an equidigital number, since it uses as much as digits as its factorization.

7142070040621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 34.

The spelling of 7142070040621 in words is "seven trillion, one hundred forty-two billion, seventy million, forty thousand, six hundred twenty-one".