39478542480 has 640 divisors, whose sum is σ = 153080202240. Its totient is φ = 9287516160.

The previous prime is 39478542473. The next prime is 39478542491. The reversal of 39478542480 is 8424587493.

39478542480 is a `hidden beast` number, since 3 + 9 + 47 + 85 + 42 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 61017517 + ... + 61018163.

It is an arithmetic number, because the mean of its divisors is an integer number (239187816).

Almost surely, 2^39478542480 is an apocalyptic number.

39478542480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39478542480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76540101120).

39478542480 is an abundant number, since it is smaller than the sum of its proper divisors (113601659760).

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

39478542480 is a wasteful number, since it uses less digits than its factorization.

39478542480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 39478542480 in words is "thirty-nine billion, four hundred seventy-eight million, five hundred forty-two thousand, four hundred eighty".