69450645127 has 4 divisors (see below), whose sum is σ = 70065252720. Its totient is φ = 68836037536.

The previous prime is 69450645101. The next prime is 69450645133. The reversal of 69450645127 is 72154605496.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69450645127 is a prime.

It is a super-2 number, since 2×69450645127² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69450645197) 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, 307303627 + ... + 307303852.

It is an arithmetic number, because the mean of its divisors is an integer number (17516313180).

Almost surely, 2^69450645127 is an apocalyptic number.

69450645127 is a deficient number, since it is larger than the sum of its proper divisors (614607593).

69450645127 is a wasteful number, since it uses less digits than its factorization.

69450645127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614607592.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 69450645127 in words is "sixty-nine billion, four hundred fifty million, six hundred forty-five thousand, one hundred twenty-seven".