42620845681854 has 48 divisors (see below), whose sum is σ = 100740749016960. Its totient is φ = 12915334921680.

The previous prime is 42620845681751. The next prime is 42620845681903. The reversal of 42620845681854 is 45818654802624.

42620845681854 is a `hidden beast` number, since 4 + 2 + 6 + 2 + 0 + 8 + 4 + 568 + 18 + 54 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 42620845681791 and 42620845681800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42170967 + ... + 43169805.

It is an arithmetic number, because the mean of its divisors is an integer number (2098765604520).

Almost surely, 2^{42620845681854} is an apocalyptic number.

42620845681854 is an abundant number, since it is smaller than the sum of its proper divisors (58119903335106).

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

42620845681854 is a wasteful number, since it uses less digits than its factorization.

42620845681854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214365 (or 1214362 counting only the distinct ones).

The product of its (nonzero) digits is 117964800, while the sum is 63.

The spelling of 42620845681854 in words is "forty-two trillion, six hundred twenty billion, eight hundred forty-five million, six hundred eighty-one thousand, eight hundred fifty-four".