70002191377 has 4 divisors (see below), whose sum is σ = 71630149360. Its totient is φ = 68374233396.

The previous prime is 70002191261. The next prime is 70002191383. The reversal of 70002191377 is 77319120007.

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: 77319120007 = 421 ⋅183655867.

It is a cyclic number.

It is not a de Polignac number, because 70002191377 - 2⁷ = 70002191249 is a prime.

It is a super-2 number, since 2×70002191377² (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 (70002195377) 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, 813978927 + ... + 813979012.

It is an arithmetic number, because the mean of its divisors is an integer number (17907537340).

Almost surely, 2^70002191377 is an apocalyptic number.

It is an amenable number.

70002191377 is a deficient number, since it is larger than the sum of its proper divisors (1627957983).

70002191377 is a wasteful number, since it uses less digits than its factorization.

70002191377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627957982.

The product of its (nonzero) digits is 18522, while the sum is 37.

The spelling of 70002191377 in words is "seventy billion, two million, one hundred ninety-one thousand, three hundred seventy-seven".