51947389046 has 8 divisors (see below), whose sum is σ = 89052666960. Its totient is φ = 22263166728.

The previous prime is 51947389003. The next prime is 51947389061. The reversal of 51947389046 is 64098374915.

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

It is a junction number, because it is equal to n+sod(n) for n = 51947388982 and 51947389000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1855263881 + ... + 1855263908.

It is an arithmetic number, because the mean of its divisors is an integer number (11131583370).

Almost surely, 2^51947389046 is an apocalyptic number.

51947389046 is a deficient number, since it is larger than the sum of its proper divisors (37105277914).

51947389046 is a wasteful number, since it uses less digits than its factorization.

51947389046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710527798.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 51947389046 in words is "fifty-one billion, nine hundred forty-seven million, three hundred eighty-nine thousand, forty-six".