4351286462640 has 640 divisors, whose sum is σ = 15167413223424. Its totient is φ = 1024704000000.

The previous prime is 4351286462573. The next prime is 4351286462641. The reversal of 4351286462640 is 462646821534.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4351286462641) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3665784127 + ... + 3665785313.

Almost surely, 2^{4351286462640} is an apocalyptic number.

4351286462640 is a gapful number since it is divisible by the number (40) 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 4351286462640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7583706611712).

4351286462640 is an abundant number, since it is smaller than the sum of its proper divisors (10816126760784).

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

4351286462640 is a wasteful number, since it uses less digits than its factorization.

4351286462640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649 (or 1643 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 51.

The spelling of 4351286462640 in words is "four trillion, three hundred fifty-one billion, two hundred eighty-six million, four hundred sixty-two thousand, six hundred forty".