62640829440 has 704 divisors, whose sum is σ = 267885158400. Its totient is φ = 13560348672.

The previous prime is 62640829439. The next prime is 62640829463. The reversal of 62640829440 is 4492804626.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 18384217 + ... + 18387623.

Almost surely, 2^62640829440 is an apocalyptic number.

62640829440 is a gapful number since it is divisible by the number (60) 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 62640829440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133942579200).

62640829440 is an abundant number, since it is smaller than the sum of its proper divisors (205244328960).

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

62640829440 is a wasteful number, since it uses less digits than its factorization.

62640829440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3467 (or 3443 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 62640829440 in words is "sixty-two billion, six hundred forty million, eight hundred twenty-nine thousand, four hundred forty".