41491478641536 has 1280 divisors, whose sum is σ = 165768186355200. Its totient is φ = 9970957025280.

The previous prime is 41491478641517. The next prime is 41491478641537. The reversal of 41491478641536 is 63514687419414.

It is a happy number.

41491478641536 is a `hidden beast` number, since 4 + 1 + 4 + 9 + 1 + 478 + 6 + 4 + 153 + 6 = 666.

It is a super-2 number, since 2×41491478641536² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41491478641537) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 800705100 + ... + 800756916.

It is an arithmetic number, because the mean of its divisors is an integer number (129506395590).

Almost surely, 2^{41491478641536} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 41491478641536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82884093177600).

41491478641536 is an abundant number, since it is smaller than the sum of its proper divisors (124276707713664).

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

41491478641536 is a wasteful number, since it uses less digits than its factorization.

41491478641536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51937 (or 51916 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 63.

The spelling of 41491478641536 in words is "forty-one trillion, four hundred ninety-one billion, four hundred seventy-eight million, six hundred forty-one thousand, five hundred thirty-six".