51021484797 has 8 divisors (see below), whose sum is σ = 68068693600. Its totient is φ = 33994299600.

The previous prime is 51021484793. The next prime is 51021484799. The reversal of 51021484797 is 79748412015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51021484797 - 2² = 51021484793 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51021484793) 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, 4999954 + ... + 5010147.

It is an arithmetic number, because the mean of its divisors is an integer number (8508586700).

Almost surely, 2^51021484797 is an apocalyptic number.

It is an amenable number.

51021484797 is a deficient number, since it is larger than the sum of its proper divisors (17047208803).

51021484797 is a wasteful number, since it uses less digits than its factorization.

51021484797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10011803.

The product of its (nonzero) digits is 564480, while the sum is 48.

The spelling of 51021484797 in words is "fifty-one billion, twenty-one million, four hundred eighty-four thousand, seven hundred ninety-seven".