7485635942381 has 2 divisors, whose sum is σ = 7485635942382. Its totient is φ = 7485635942380.

The previous prime is 7485635942377. The next prime is 7485635942401. The reversal of 7485635942381 is 1832495365847.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7380730562500 + 104905379881 = 2716750^2 + 323891^2 .

It is a cyclic number.

It is not a de Polignac number, because 7485635942381 - 2² = 7485635942377 is a prime.

It is a super-2 number, since 2×7485635942381² (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 (7485635942321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3742817971190 + 3742817971191.

It is an arithmetic number, because the mean of its divisors is an integer number (3742817971191).

Almost surely, 2^{7485635942381} is an apocalyptic number.

It is an amenable number.

7485635942381 is a deficient number, since it is larger than the sum of its proper divisors (1).

7485635942381 is an equidigital number, since it uses as much as digits as its factorization.

7485635942381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174182400, while the sum is 65.

The spelling of 7485635942381 in words is "seven trillion, four hundred eighty-five billion, six hundred thirty-five million, nine hundred forty-two thousand, three hundred eighty-one".