2512861040640 has 208 divisors, whose sum is σ = 8042698078848. Its totient is φ = 669885923328.

The previous prime is 2512861040611. The next prime is 2512861040653. The reversal of 2512861040640 is 460401682152.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359850589 + ... + 359857571.

Almost surely, 2^{2512861040640} is an apocalyptic number.

2512861040640 is a gapful number since it is divisible by the number (20) 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 2512861040640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4021349039424).

2512861040640 is an abundant number, since it is smaller than the sum of its proper divisors (5529837038208).

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

2512861040640 is an equidigital number, since it uses as much as digits as its factorization.

2512861040640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12872 (or 12850 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 2512861040640 in words is "two trillion, five hundred twelve billion, eight hundred sixty-one million, forty thousand, six hundred forty".