37284378640 has 40 divisors (see below), whose sum is σ = 87783488640. Its totient is φ = 14724967296.

The previous prime is 37284378611. The next prime is 37284378647. The reversal of 37284378640 is 4687348273.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (37284378647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2943394 + ... + 2956033.

It is an arithmetic number, because the mean of its divisors is an integer number (2194587216).

Almost surely, 2^37284378640 is an apocalyptic number.

It is an amenable number.

37284378640 is an abundant number, since it is smaller than the sum of its proper divisors (50499110000).

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

37284378640 is a wasteful number, since it uses less digits than its factorization.

37284378640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5899519 (or 5899513 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 52.

The spelling of 37284378640 in words is "thirty-seven billion, two hundred eighty-four million, three hundred seventy-eight thousand, six hundred forty".