51670115188321 has 32 divisors (see below), whose sum is σ = 61335786258432. Its totient is φ = 42608527536960.

The previous prime is 51670115188303. The next prime is 51670115188361. The reversal of 51670115188321 is 12388151107615.

It is not a de Polignac number, because 51670115188321 - 2³⁹ = 51120359374433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51670115188301) 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, 30626610 + ... + 32269636.

It is an arithmetic number, because the mean of its divisors is an integer number (1916743320576).

Almost surely, 2^{51670115188321} is an apocalyptic number.

It is an amenable number.

51670115188321 is a deficient number, since it is larger than the sum of its proper divisors (9665671070111).

51670115188321 is a wasteful number, since it uses less digits than its factorization.

51670115188321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644709.

The product of its (nonzero) digits is 403200, while the sum is 49.

The spelling of 51670115188321 in words is "fifty-one trillion, six hundred seventy billion, one hundred fifteen million, one hundred eighty-eight thousand, three hundred twenty-one".