75087616973 has 2 divisors, whose sum is σ = 75087616974. Its totient is φ = 75087616972.

The previous prime is 75087616963. The next prime is 75087616987. The reversal of 75087616973 is 37961678057.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75077644009 + 9972964 = 274003^2 + 3158^2 .

It is an emirp because it is prime and its reverse (37961678057) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75087616973 - 2⁴ = 75087616957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75087616943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37543808486 + 37543808487.

It is an arithmetic number, because the mean of its divisors is an integer number (37543808487).

Almost surely, 2^75087616973 is an apocalyptic number.

It is an amenable number.

75087616973 is a deficient number, since it is larger than the sum of its proper divisors (1).

75087616973 is an equidigital number, since it uses as much as digits as its factorization.

75087616973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13335840, while the sum is 59.

The spelling of 75087616973 in words is "seventy-five billion, eighty-seven million, six hundred sixteen thousand, nine hundred seventy-three".