70102093861 has 2 divisors, whose sum is σ = 70102093862. Its totient is φ = 70102093860.

The previous prime is 70102093813. The next prime is 70102093871. The reversal of 70102093861 is 16839020107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48413640961 + 21688452900 = 220031^2 + 147270^2 .

It is a cyclic number.

It is not a de Polignac number, because 70102093861 - 2¹⁷ = 70101962789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70102093861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70102093871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35051046930 + 35051046931.

It is an arithmetic number, because the mean of its divisors is an integer number (35051046931).

Almost surely, 2^70102093861 is an apocalyptic number.

It is an amenable number.

70102093861 is a deficient number, since it is larger than the sum of its proper divisors (1).

70102093861 is an equidigital number, since it uses as much as digits as its factorization.

70102093861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

Subtracting from 70102093861 its sum of digits (37), we obtain a square (70102093824 = 264768²).

The spelling of 70102093861 in words is "seventy billion, one hundred two million, ninety-three thousand, eight hundred sixty-one".