67070040407 has 4 divisors (see below), whose sum is σ = 67072417440. Its totient is φ = 67067663376.

The previous prime is 67070040343. The next prime is 67070040463. The reversal of 67070040407 is 70404007076.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67070040407 - 2⁶ = 67070040343 is a prime.

It is a super-2 number, since 2×67070040407² (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 (67070040487) 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, 1145678 + ... + 1202795.

It is an arithmetic number, because the mean of its divisors is an integer number (16768104360).

Almost surely, 2^67070040407 is an apocalyptic number.

67070040407 is a deficient number, since it is larger than the sum of its proper divisors (2377033).

67070040407 is a wasteful number, since it uses less digits than its factorization.

67070040407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377032.

The product of its (nonzero) digits is 32928, while the sum is 35.

The spelling of 67070040407 in words is "sixty-seven billion, seventy million, forty thousand, four hundred seven".