51398217522119 has 16 divisors (see below), whose sum is σ = 56250750844512. Its totient is φ = 46675919841408.

The previous prime is 51398217522103. The next prime is 51398217522137. The reversal of 51398217522119 is 91122571289315.

It is not a de Polignac number, because 51398217522119 - 2⁴ = 51398217522103 is a prime.

It is a super-2 number, since 2×51398217522119² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51398217512119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37496564 + ... + 38843129.

It is an arithmetic number, because the mean of its divisors is an integer number (3515671927782).

Almost surely, 2^{51398217522119} is an apocalyptic number.

51398217522119 is a deficient number, since it is larger than the sum of its proper divisors (4852533322393).

51398217522119 is a wasteful number, since it uses less digits than its factorization.

51398217522119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76340546.

The product of its digits is 2721600, while the sum is 56.

The spelling of 51398217522119 in words is "fifty-one trillion, three hundred ninety-eight billion, two hundred seventeen million, five hundred twenty-two thousand, one hundred nineteen".