143897861376 has 216 divisors, whose sum is σ = 438731354880. Its totient is φ = 45285580800.

The previous prime is 143897861363. The next prime is 143897861389. The reversal of 143897861376 is 673168798341.

143897861376 is a `hidden beast` number, since 1 + 4 + 3 + 8 + 9 + 7 + 8 + 613 + 7 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (143897861363) and next prime (143897861389).

It is a super-2 number, since 2×143897861376² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2903815 + ... + 2952953.

It is an arithmetic number, because the mean of its divisors is an integer number (2031163680).

Almost surely, 2^143897861376 is an apocalyptic number.

143897861376 is a gapful number since it is divisible by the number (16) 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 143897861376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219365677440).

143897861376 is an abundant number, since it is smaller than the sum of its proper divisors (294833493504).

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

143897861376 is a wasteful number, since it uses less digits than its factorization.

143897861376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49233 (or 49216 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The spelling of 143897861376 in words is "one hundred forty-three billion, eight hundred ninety-seven million, eight hundred sixty-one thousand, three hundred seventy-six".