3856178262480 has 640 divisors, whose sum is σ = 13109228241408. Its totient is φ = 934047645696.

The previous prime is 3856178262479. The next prime is 3856178262491. The reversal of 3856178262480 is 842628716583.

It is a super-2 number, since 2×3856178262480² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3452262882 + ... + 3452263998.

Almost surely, 2^{3856178262480} is an apocalyptic number.

3856178262480 is a gapful number since it is divisible by the number (30) 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 3856178262480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6554614120704).

3856178262480 is an abundant number, since it is smaller than the sum of its proper divisors (9253049978928).

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

3856178262480 is a wasteful number, since it uses less digits than its factorization.

3856178262480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463 (or 1457 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 60.

The spelling of 3856178262480 in words is "three trillion, eight hundred fifty-six billion, one hundred seventy-eight million, two hundred sixty-two thousand, four hundred eighty".