3211512678040 has 16 divisors (see below), whose sum is σ = 7225903525680. Its totient is φ = 1284605071200.

The previous prime is 3211512678029. The next prime is 3211512678047. The reversal of 3211512678040 is 408762151123.

3211512678040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 80287816951 = 3211512678040 / (3 + 2 + 1 + 1 + 5 + 1 + 2 + 6 + 7 + 8 + 0 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 3211512677984 and 3211512678002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3211512678047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40143908436 + ... + 40143908515.

It is an arithmetic number, because the mean of its divisors is an integer number (451618970355).

Almost surely, 2^{3211512678040} is an apocalyptic number.

It is an amenable number.

3211512678040 is an abundant number, since it is smaller than the sum of its proper divisors (4014390847640).

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

3211512678040 is a wasteful number, since it uses less digits than its factorization.

3211512678040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80287816962 (or 80287816958 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 3211512678040 in words is "three trillion, two hundred eleven billion, five hundred twelve million, six hundred seventy-eight thousand, forty".