67409339642057 has 32 divisors (see below), whose sum is σ = 79475351074560. Its totient is φ = 55980280811520.

The previous prime is 67409339642033. The next prime is 67409339642081. The reversal of 67409339642057 is 75024693390476.

It is an interprime number because it is at equal distance from previous prime (67409339642033) and next prime (67409339642081).

It is a cyclic number.

It is not a de Polignac number, because 67409339642057 - 2¹⁴ = 67409339625673 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67409339641984 and 67409339642002.

It is not an unprimeable number, because it can be changed into a prime (67409339642017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66037169 + ... + 67050177.

It is an arithmetic number, because the mean of its divisors is an integer number (2483604721080).

Almost surely, 2^{67409339642057} is an apocalyptic number.

It is an amenable number.

67409339642057 is a deficient number, since it is larger than the sum of its proper divisors (12066011432503).

67409339642057 is a wasteful number, since it uses less digits than its factorization.

67409339642057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015313.

The product of its (nonzero) digits is 205752960, while the sum is 65.

The spelling of 67409339642057 in words is "sixty-seven trillion, four hundred nine billion, three hundred thirty-nine million, six hundred forty-two thousand, fifty-seven".