7402078701989 has 2 divisors, whose sum is σ = 7402078701990. Its totient is φ = 7402078701988.

The previous prime is 7402078701971. The next prime is 7402078702049. The reversal of 7402078701989 is 9891078702047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7037570676964 + 364508025025 = 2652842^2 + 603745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7402078701989 is a prime.

It is a super-2 number, since 2×7402078701989² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7402078701929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3701039350994 + 3701039350995.

It is an arithmetic number, because the mean of its divisors is an integer number (3701039350995).

Almost surely, 2^{7402078701989} is an apocalyptic number.

It is an amenable number.

7402078701989 is a deficient number, since it is larger than the sum of its proper divisors (1).

7402078701989 is an equidigital number, since it uses as much as digits as its factorization.

7402078701989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14224896, while the sum is 62.

The spelling of 7402078701989 in words is "seven trillion, four hundred two billion, seventy-eight million, seven hundred one thousand, nine hundred eighty-nine".