70618034021 has 4 divisors (see below), whose sum is σ = 71468853792. Its totient is φ = 69767214252.

The previous prime is 70618033991. The next prime is 70618034041. The reversal of 70618034021 is 12043081607.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12043081607 = 8161 ⋅1475687.

It is a cyclic number.

It is not a de Polignac number, because 70618034021 - 2³⁰ = 69544292197 is a prime.

It is a super-2 number, since 2×70618034021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70618034041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425409761 + ... + 425409926.

It is an arithmetic number, because the mean of its divisors is an integer number (17867213448).

Almost surely, 2^70618034021 is an apocalyptic number.

It is an amenable number.

70618034021 is a deficient number, since it is larger than the sum of its proper divisors (850819771).

70618034021 is an equidigital number, since it uses as much as digits as its factorization.

70618034021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850819770.

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 70618034021 in words is "seventy billion, six hundred eighteen million, thirty-four thousand, twenty-one".