2861209662480 has 240 divisors, whose sum is σ = 10731303360960. Its totient is φ = 704297700864.

The previous prime is 2861209662349. The next prime is 2861209662551. The reversal of 2861209662480 is 842669021682.

2861209662480 is a `hidden beast` number, since 2 + 8 + 6 + 1 + 2 + 0 + 9 + 6 + 624 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5408110 + ... + 5913549.

It is an arithmetic number, because the mean of its divisors is an integer number (44713764004).

Almost surely, 2^{2861209662480} is an apocalyptic number.

2861209662480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2861209662480 is an abundant number, since it is smaller than the sum of its proper divisors (7870093698480).

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

2861209662480 is a wasteful number, since it uses less digits than its factorization.

2861209662480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11321700 (or 11321682 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 2861209662480 in words is "two trillion, eight hundred sixty-one billion, two hundred nine million, six hundred sixty-two thousand, four hundred eighty".