402670783915776 has 432 divisors, whose sum is σ = 1244935374228000. Its totient is φ = 124726853763072.

The previous prime is 402670783915747. The next prime is 402670783915787. The reversal of 402670783915776 is 677519387076204.

402670783915776 is a `hidden beast` number, since 40 + 2 + 6 + 7 + 0 + 7 + 8 + 3 + 9 + 1 + 577 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1591778550 + ... + 1592031498.

It is an arithmetic number, because the mean of its divisors is an integer number (2881794847750).

It is a 1-persistent number, because it is pandigital, but 2⋅402670783915776 = 805341567831552 is not.

Almost surely, 2^{402670783915776} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402670783915776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622467687114000).

402670783915776 is an abundant number, since it is smaller than the sum of its proper divisors (842264590312224).

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

402670783915776 is a wasteful number, since it uses less digits than its factorization.

402670783915776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253504 (or 253487 counting only the distinct ones).

The product of its (nonzero) digits is 746807040, while the sum is 72.

The spelling of 402670783915776 in words is "four hundred two trillion, six hundred seventy billion, seven hundred eighty-three million, nine hundred fifteen thousand, seven hundred seventy-six".