2861427949380 has 2688 divisors, whose sum is σ = 13504384696320. Its totient is φ = 488566702080.

The previous prime is 2861427949337. The next prime is 2861427949409. The reversal of 2861427949380 is 839497241682.

2861427949380 is a `hidden beast` number, since 2 + 8 + 6 + 142 + 79 + 49 + 380 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 895 ways as a sum of consecutive naturals, for example, 4714049037 + ... + 4714049643.

It is an arithmetic number, because the mean of its divisors is an integer number (5023952640).

Almost surely, 2^{2861427949380} is an apocalyptic number.

2861427949380 is a gapful number since it is divisible by the number (20) 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 2861427949380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6752192348160).

2861427949380 is an abundant number, since it is smaller than the sum of its proper divisors (10642956746940).

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

2861427949380 is a wasteful number, since it uses less digits than its factorization.

2861427949380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 2861427949380 in words is "two trillion, eight hundred sixty-one billion, four hundred twenty-seven million, nine hundred forty-nine thousand, three hundred eighty".