3146921499640 has 32 divisors (see below), whose sum is σ = 7081513494480. Its totient is φ = 1258601467392.

The previous prime is 3146921499637. The next prime is 3146921499649. The reversal of 3146921499640 is 469941296413.

It is a super-2 number, since 2×3146921499640² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3146921499649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4917642 + ... + 5520601.

Almost surely, 2^{3146921499640} is an apocalyptic number.

It is an amenable number.

3146921499640 is an abundant number, since it is smaller than the sum of its proper divisors (3934591994840).

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

3146921499640 is a wasteful number, since it uses less digits than its factorization.

3146921499640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10445791 (or 10445787 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 58.

The spelling of 3146921499640 in words is "three trillion, one hundred forty-six billion, nine hundred twenty-one million, four hundred ninety-nine thousand, six hundred forty".