51570467427 has 4 divisors (see below), whose sum is σ = 68760623240. Its totient is φ = 34380311616.

The previous prime is 51570467401. The next prime is 51570467461. The reversal of 51570467427 is 72476407515.

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

It is not a de Polignac number, because 51570467427 - 2⁶ = 51570467363 is a prime.

It is a super-2 number, since 2×51570467427² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51570467027) 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, 8595077902 + ... + 8595077907.

It is an arithmetic number, because the mean of its divisors is an integer number (17190155810).

Almost surely, 2^51570467427 is an apocalyptic number.

51570467427 is a deficient number, since it is larger than the sum of its proper divisors (17190155813).

51570467427 is a wasteful number, since it uses less digits than its factorization.

51570467427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17190155812.

The product of its (nonzero) digits is 1646400, while the sum is 48.

The spelling of 51570467427 in words is "fifty-one billion, five hundred seventy million, four hundred sixty-seven thousand, four hundred twenty-seven".