51740700102 has 128 divisors (see below), whose sum is σ = 146078392320. Its totient is φ = 13205669760.

The previous prime is 51740700101. The next prime is 51740700113. The reversal of 51740700102 is 20100704715.

51740700102 is a `hidden beast` number, since 517 + 40 + 7 + 0 + 0 + 102 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51740700101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17493 + ... + 322160.

It is an arithmetic number, because the mean of its divisors is an integer number (1141237440).

Almost surely, 2^51740700102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51740700102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73039196160).

51740700102 is an abundant number, since it is smaller than the sum of its proper divisors (94337692218).

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

51740700102 is a wasteful number, since it uses less digits than its factorization.

51740700102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339715 (or 339709 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The spelling of 51740700102 in words is "fifty-one billion, seven hundred forty million, seven hundred thousand, one hundred two".