7474994837 has 2 divisors, whose sum is σ = 7474994838. Its totient is φ = 7474994836.

The previous prime is 7474994729. The next prime is 7474994851. The reversal of 7474994837 is 7384994747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7462540996 + 12453841 = 86386^2 + 3529^2 .

It is a cyclic number.

It is not a de Polignac number, because 7474994837 - 2¹² = 7474990741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7474994837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7474994887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3737497418 + 3737497419.

It is an arithmetic number, because the mean of its divisors is an integer number (3737497419).

Almost surely, 2^7474994837 is an apocalyptic number.

It is an amenable number.

7474994837 is a deficient number, since it is larger than the sum of its proper divisors (1).

7474994837 is an equidigital number, since it uses as much as digits as its factorization.

7474994837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42674688, while the sum is 62.

The square root of 7474994837 is about 86458.0524705478. The cubic root of 7474994837 is about 1955.2560228802.

The spelling of 7474994837 in words is "seven billion, four hundred seventy-four million, nine hundred ninety-four thousand, eight hundred thirty-seven".