3115501769640 has 256 divisors, whose sum is σ = 10759274426880. Its totient is φ = 715657789440.

The previous prime is 3115501769581. The next prime is 3115501769651. The reversal of 3115501769640 is 469671055113.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3115501769640.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 412164 + ... + 2529996.

It is an arithmetic number, because the mean of its divisors is an integer number (42028415730).

Almost surely, 2^{3115501769640} is an apocalyptic number.

3115501769640 is a gapful number since it is divisible by the number (30) 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 3115501769640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5379637213440).

3115501769640 is an abundant number, since it is smaller than the sum of its proper divisors (7643772657240).

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

3115501769640 is a wasteful number, since it uses less digits than its factorization.

3115501769640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117924 (or 2117920 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 48.

The spelling of 3115501769640 in words is "three trillion, one hundred fifteen billion, five hundred one million, seven hundred sixty-nine thousand, six hundred forty".