67620505714465 has 48 divisors (see below), whose sum is σ = 90659213845200. Its totient is φ = 48369652531200.

The previous prime is 67620505714381. The next prime is 67620505714477. The reversal of 67620505714465 is 56441750502676.

It can be written as a sum of positive squares in 8 ways, for example, as 30260648937024 + 37359856777441 = 5500968^2 + 6112271^2 .

It is not a de Polignac number, because 67620505714465 - 2⁷ = 67620505714337 is a prime.

It is a super-2 number, since 2×67620505714465² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 859736461 + ... + 859815109.

It is an arithmetic number, because the mean of its divisors is an integer number (1888733621775).

Almost surely, 2^{67620505714465} is an apocalyptic number.

It is an amenable number.

67620505714465 is a deficient number, since it is larger than the sum of its proper divisors (23038708130735).

67620505714465 is a wasteful number, since it uses less digits than its factorization.

67620505714465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102034 (or 102023 counting only the distinct ones).

The product of its (nonzero) digits is 42336000, while the sum is 58.

The spelling of 67620505714465 in words is "sixty-seven trillion, six hundred twenty billion, five hundred five million, seven hundred fourteen thousand, four hundred sixty-five".