70340400667 has 4 divisors (see below), whose sum is σ = 70484837296. Its totient is φ = 70195964040.

The previous prime is 70340400661. The next prime is 70340400719. The reversal of 70340400667 is 76600404307.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76600404307 = 7 ⋅10942914901.

It is a cyclic number.

It is not a de Polignac number, because 70340400667 - 2³¹ = 68192917019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70340400661) 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, 72217584 + ... + 72218557.

It is an arithmetic number, because the mean of its divisors is an integer number (17621209324).

Almost surely, 2^70340400667 is an apocalyptic number.

70340400667 is a deficient number, since it is larger than the sum of its proper divisors (144436629).

70340400667 is a wasteful number, since it uses less digits than its factorization.

70340400667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144436628.

The product of its (nonzero) digits is 84672, while the sum is 37.

The spelling of 70340400667 in words is "seventy billion, three hundred forty million, four hundred thousand, six hundred sixty-seven".