736854974274989 has 2 divisors, whose sum is σ = 736854974274990. Its totient is φ = 736854974274988.

The previous prime is 736854974274971. The next prime is 736854974275073. The reversal of 736854974274989 is 989472479458637.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 566017866676900 + 170837107598089 = 23791130^2 + 13070467^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-736854974274989 is a prime.

It is a super-2 number, since 2×736854974274989² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 736854974274898 and 736854974274907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (736854974274889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 368427487137494 + 368427487137495.

It is an arithmetic number, because the mean of its divisors is an integer number (368427487137495).

Almost surely, 2^{736854974274989} is an apocalyptic number.

It is an amenable number.

736854974274989 is a deficient number, since it is larger than the sum of its proper divisors (1).

736854974274989 is an equidigital number, since it uses as much as digits as its factorization.

736854974274989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184354652160, while the sum is 92.

The spelling of 736854974274989 in words is "seven hundred thirty-six trillion, eight hundred fifty-four billion, nine hundred seventy-four million, two hundred seventy-four thousand, nine hundred eighty-nine".