51005402403345 has 48 divisors (see below), whose sum is σ = 97424272545600. Its totient is φ = 24526390267008.

The previous prime is 51005402403341. The next prime is 51005402403349. The reversal of 51005402403345 is 54330420450015.

51005402403345 is a `hidden beast` number, since 5 + 1 + 0 + 0 + 540 + 2 + 40 + 33 + 45 = 666.

It is an interprime number because it is at equal distance from previous prime (51005402403341) and next prime (51005402403349).

It is not a de Polignac number, because 51005402403345 - 2² = 51005402403341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51005402403341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1013797195 + ... + 1013847504.

It is an arithmetic number, because the mean of its divisors is an integer number (2029672344700).

Almost surely, 2^{51005402403345} is an apocalyptic number.

It is an amenable number.

51005402403345 is a deficient number, since it is larger than the sum of its proper divisors (46418870142255).

51005402403345 is a wasteful number, since it uses less digits than its factorization.

51005402403345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027644766 (or 2027644763 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 51005402403345 in words is "fifty-one trillion, five billion, four hundred two million, four hundred three thousand, three hundred forty-five".