87758137627 has 2 divisors, whose sum is σ = 87758137628. Its totient is φ = 87758137626.

The previous prime is 87758137543. The next prime is 87758137639. The reversal of 87758137627 is 72673185778.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87758137627 is a prime.

It is a super-2 number, since 2×87758137627² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87758137427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43879068813 + 43879068814.

It is an arithmetic number, because the mean of its divisors is an integer number (43879068814).

Almost surely, 2^87758137627 is an apocalyptic number.

87758137627 is a deficient number, since it is larger than the sum of its proper divisors (1).

87758137627 is an equidigital number, since it uses as much as digits as its factorization.

87758137627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27659520, while the sum is 61.

The spelling of 87758137627 in words is "eighty-seven billion, seven hundred fifty-eight million, one hundred thirty-seven thousand, six hundred twenty-seven".