70697551019 has 4 divisors (see below), whose sum is σ = 71666010696. Its totient is φ = 69729091344.

The previous prime is 70697551013. The next prime is 70697551039. The reversal of 70697551019 is 91015579607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91015579607 = 163 ⋅558377789.

It is a cyclic number.

It is not a de Polignac number, because 70697551019 - 2³⁶ = 1978074283 is a prime.

It is a super-2 number, since 2×70697551019² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70697551013) 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, 484229729 + ... + 484229874.

It is an arithmetic number, because the mean of its divisors is an integer number (17916502674).

Almost surely, 2^70697551019 is an apocalyptic number.

70697551019 is a deficient number, since it is larger than the sum of its proper divisors (968459677).

70697551019 is an equidigital number, since it uses as much as digits as its factorization.

70697551019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968459676.

The product of its (nonzero) digits is 595350, while the sum is 50.

The spelling of 70697551019 in words is "seventy billion, six hundred ninety-seven million, five hundred fifty-one thousand, nineteen".