3215400003376 has 80 divisors (see below), whose sum is σ = 6940198298880. Its totient is φ = 1430700860160.

The previous prime is 3215400003349. The next prime is 3215400003379. The reversal of 3215400003376 is 6733000045123.

It is a super-2 number, since 2×3215400003376² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3215400003379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3702391 + ... + 4487593.

It is an arithmetic number, because the mean of its divisors is an integer number (86752478736).

Almost surely, 2^{3215400003376} 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 3215400003376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3470099149440).

3215400003376 is an abundant number, since it is smaller than the sum of its proper divisors (3724798295504).

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

3215400003376 is a wasteful number, since it uses less digits than its factorization.

3215400003376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785714 (or 785708 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 34.

Adding to 3215400003376 its reverse (6733000045123), we get a palindrome (9948400048499).

The spelling of 3215400003376 in words is "three trillion, two hundred fifteen billion, four hundred million, three thousand, three hundred seventy-six".