137476674781 has 2 divisors, whose sum is σ = 137476674782. Its totient is φ = 137476674780.

The previous prime is 137476674697. The next prime is 137476674787. The reversal of 137476674781 is 187476674731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135301851556 + 2174823225 = 367834^2 + 46635^2 .

It is an emirp because it is prime and its reverse (187476674731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137476674781 - 2⁷ = 137476674653 is a prime.

It is a super-2 number, since 2×137476674781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137476674787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68738337390 + 68738337391.

It is an arithmetic number, because the mean of its divisors is an integer number (68738337391).

Almost surely, 2^137476674781 is an apocalyptic number.

It is an amenable number.

137476674781 is a deficient number, since it is larger than the sum of its proper divisors (1).

137476674781 is an equidigital number, since it uses as much as digits as its factorization.

137476674781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33191424, while the sum is 61.

The spelling of 137476674781 in words is "one hundred thirty-seven billion, four hundred seventy-six million, six hundred seventy-four thousand, seven hundred eighty-one".