51026616290 has 32 divisors (see below), whose sum is σ = 99032658480. Its totient is φ = 18817830144.

The previous prime is 51026616283. The next prime is 51026616293. The reversal of 51026616290 is 9261662015.

It can be written as a sum of positive squares in 8 ways, for example, as 1632887281 + 49393729009 = 40409^2 + 222247^2 .

It is not an unprimeable number, because it can be changed into a prime (51026616293) 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, 128969 + ... + 344508.

Almost surely, 2^51026616290 is an apocalyptic number.

51026616290 is a deficient number, since it is larger than the sum of its proper divisors (48006042190).

51026616290 is a wasteful number, since it uses less digits than its factorization.

51026616290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474326.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 51026616290 in words is "fifty-one billion, twenty-six million, six hundred sixteen thousand, two hundred ninety".