64546048476 has 240 divisors, whose sum is σ = 214377461760. Its totient is φ = 16473767040.

The previous prime is 64546048453. The next prime is 64546048481. The reversal of 64546048476 is 67484064546.

It is a happy number.

64546048476 is a `hidden beast` number, since 64 + 54 + 60 + 4 + 8 + 476 = 666.

It is a super-2 number, since 2×64546048476² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 878695 + ... + 949313.

It is an arithmetic number, because the mean of its divisors is an integer number (893239424).

Almost surely, 2^64546048476 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 64546048476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107188730880).

64546048476 is an abundant number, since it is smaller than the sum of its proper divisors (149831413284).

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

64546048476 is a wasteful number, since it uses less digits than its factorization.

64546048476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70686 (or 70675 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 54.

The spelling of 64546048476 in words is "sixty-four billion, five hundred forty-six million, forty-eight thousand, four hundred seventy-six".