51051073740 has 48 divisors (see below), whose sum is σ = 146429428320. Its totient is φ = 13281579520.

The previous prime is 51051073727. The next prime is 51051073753. The reversal of 51051073740 is 4737015015.

It is an interprime number because it is at equal distance from previous prime (51051073727) and next prime (51051073753).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10373775 + ... + 10378694.

It is an arithmetic number, because the mean of its divisors is an integer number (3050613090).

Almost surely, 2^51051073740 is an apocalyptic number.

It is an amenable number.

51051073740 is an abundant number, since it is smaller than the sum of its proper divisors (95378354580).

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

51051073740 is a wasteful number, since it uses less digits than its factorization.

51051073740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20752522 (or 20752520 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 33.

Adding to 51051073740 its reverse (4737015015), we get a palindrome (55788088755).

The spelling of 51051073740 in words is "fifty-one billion, fifty-one million, seventy-three thousand, seven hundred forty".