42454769148855 has 80 divisors (see below), whose sum is σ = 87004946772480. Its totient is φ = 19401461972928.

The previous prime is 42454769148821. The next prime is 42454769148859. The reversal of 42454769148855 is 55884196745424.

42454769148855 is a `hidden beast` number, since 4 + 2 + 4 + 5 + 4 + 7 + 6 + 91 + 488 + 55 = 666.

It is not a de Polignac number, because 42454769148855 - 2⁶ = 42454769148791 is a prime.

It is a super-2 number, since 2×42454769148855² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42454769148859) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6078702 + ... + 11039028.

It is an arithmetic number, because the mean of its divisors is an integer number (1087561834656).

Almost surely, 2^{42454769148855} is an apocalyptic number.

42454769148855 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42454769148855 is an abundant number, since it is smaller than the sum of its proper divisors (44550177623625).

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

42454769148855 is a wasteful number, since it uses less digits than its factorization.

42454769148855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4963370 (or 4963361 counting only the distinct ones).

The product of its digits is 1548288000, while the sum is 72.

The spelling of 42454769148855 in words is "forty-two trillion, four hundred fifty-four billion, seven hundred sixty-nine million, one hundred forty-eight thousand, eight hundred fifty-five".