137777087947 has 2 divisors, whose sum is σ = 137777087948. Its totient is φ = 137777087946.

The previous prime is 137777087879. The next prime is 137777087953. The reversal of 137777087947 is 749780777731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137777087947 - 2¹¹ = 137777085899 is a prime.

It is not a weakly prime, because it can be changed into another prime (137777087647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68888543973 + 68888543974.

It is an arithmetic number, because the mean of its divisors is an integer number (68888543974).

Almost surely, 2^137777087947 is an apocalyptic number.

137777087947 is a deficient number, since it is larger than the sum of its proper divisors (1).

137777087947 is an equidigital number, since it uses as much as digits as its factorization.

137777087947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 101648736, while the sum is 67.

The spelling of 137777087947 in words is "one hundred thirty-seven billion, seven hundred seventy-seven million, eighty-seven thousand, nine hundred forty-seven".