51436541857222 has 32 divisors (see below), whose sum is σ = 81440510467680. Its totient is φ = 24297232988160.

The previous prime is 51436541857189. The next prime is 51436541857291. The reversal of 51436541857222 is 22275814563415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60236838 + ... + 61084774.

It is an arithmetic number, because the mean of its divisors is an integer number (2545015952115).

Almost surely, 2^{51436541857222} is an apocalyptic number.

51436541857222 is a deficient number, since it is larger than the sum of its proper divisors (30003968610458).

51436541857222 is a wasteful number, since it uses less digits than its factorization.

51436541857222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852376.

The product of its digits is 16128000, while the sum is 55.

The spelling of 51436541857222 in words is "fifty-one trillion, four hundred thirty-six billion, five hundred forty-one million, eight hundred fifty-seven thousand, two hundred twenty-two".