87970837751 has 2 divisors, whose sum is σ = 87970837752. Its totient is φ = 87970837750.

The previous prime is 87970837723. The next prime is 87970837769. The reversal of 87970837751 is 15773807978.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87970837751 - 2¹⁸ = 87970575607 is a prime.

It is a super-2 number, since 2×87970837751² (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 (87970837781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43985418875 + 43985418876.

It is an arithmetic number, because the mean of its divisors is an integer number (43985418876).

Almost surely, 2^87970837751 is an apocalyptic number.

87970837751 is a deficient number, since it is larger than the sum of its proper divisors (1).

87970837751 is an equidigital number, since it uses as much as digits as its factorization.

87970837751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20744640, while the sum is 62.

The spelling of 87970837751 in words is "eighty-seven billion, nine hundred seventy million, eight hundred thirty-seven thousand, seven hundred fifty-one".