70043397401 has 2 divisors, whose sum is σ = 70043397402. Its totient is φ = 70043397400.

The previous prime is 70043397379. The next prime is 70043397421. The reversal of 70043397401 is 10479334007.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66458262025 + 3585135376 = 257795^2 + 59876^2 .

It is a cyclic number.

It is not a de Polignac number, because 70043397401 - 2²² = 70039203097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (70043397421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35021698700 + 35021698701.

It is an arithmetic number, because the mean of its divisors is an integer number (35021698701).

Almost surely, 2^70043397401 is an apocalyptic number.

It is an amenable number.

70043397401 is a deficient number, since it is larger than the sum of its proper divisors (1).

70043397401 is an equidigital number, since it uses as much as digits as its factorization.

70043397401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 38.

The spelling of 70043397401 in words is "seventy billion, forty-three million, three hundred ninety-seven thousand, four hundred one".