70533617123 has 2 divisors, whose sum is σ = 70533617124. Its totient is φ = 70533617122.

The previous prime is 70533617059. The next prime is 70533617131. The reversal of 70533617123 is 32171633507.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70533617123 - 2⁶ = 70533617059 is a prime.

It is a super-2 number, since 2×70533617123² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70533617153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35266808561 + 35266808562.

It is an arithmetic number, because the mean of its divisors is an integer number (35266808562).

Almost surely, 2^70533617123 is an apocalyptic number.

70533617123 is a deficient number, since it is larger than the sum of its proper divisors (1).

70533617123 is an equidigital number, since it uses as much as digits as its factorization.

70533617123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 38.

The spelling of 70533617123 in words is "seventy billion, five hundred thirty-three million, six hundred seventeen thousand, one hundred twenty-three".