51498187098 has 16 divisors (see below), whose sum is σ = 103102458336. Its totient is φ = 17148381680.

The previous prime is 51498187093. The next prime is 51498187127. The reversal of 51498187098 is 89078189415.

It is a happy number.

It is a super-2 number, since 2×51498187098² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51498187093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4413861 + ... + 4425512.

It is an arithmetic number, because the mean of its divisors is an integer number (6443903646).

Almost surely, 2^51498187098 is an apocalyptic number.

51498187098 is an abundant number, since it is smaller than the sum of its proper divisors (51604271238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51498187098 is a wasteful number, since it uses less digits than its factorization.

51498187098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8840349.

The product of its (nonzero) digits is 5806080, while the sum is 60.

The spelling of 51498187098 in words is "fifty-one billion, four hundred ninety-eight million, one hundred eighty-seven thousand, ninety-eight".