65874426240 has 128 divisors (see below), whose sum is σ = 239971173120. Its totient is φ = 15057008640.

The previous prime is 65874426227. The next prime is 65874426271. The reversal of 65874426240 is 4262447856.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 65874426240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2437246 + ... + 2464125.

It is an arithmetic number, because the mean of its divisors is an integer number (1874774790).

Almost surely, 2^65874426240 is an apocalyptic number.

65874426240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65874426240 is an abundant number, since it is smaller than the sum of its proper divisors (174096746880).

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

65874426240 is a wasteful number, since it uses less digits than its factorization.

65874426240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4901400 (or 4901388 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 48.

The spelling of 65874426240 in words is "sixty-five billion, eight hundred seventy-four million, four hundred twenty-six thousand, two hundred forty".