51298961958 has 40 divisors (see below), whose sum is σ = 115056195408. Its totient is φ = 17083510416.

The previous prime is 51298961953. The next prime is 51298961963. The reversal of 51298961958 is 85916989215.

51298961958 is a `hidden beast` number, since 5 + 1 + 2 + 9 + 8 + 9 + 619 + 5 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (51298961953) and next prime (51298961963).

It is a junction number, because it is equal to n+sod(n) for n = 51298961895 and 51298961904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51298961953) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23260 + ... + 321152.

Almost surely, 2^51298961958 is an apocalyptic number.

51298961958 is an abundant number, since it is smaller than the sum of its proper divisors (63757233450).

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

51298961958 is a wasteful number, since it uses less digits than its factorization.

51298961958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298970 (or 298961 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 63.

The spelling of 51298961958 in words is "fifty-one billion, two hundred ninety-eight million, nine hundred sixty-one thousand, nine hundred fifty-eight".