5065400640 has 112 divisors (see below), whose sum is σ = 16517428992. Its totient is φ = 1314256896.

The previous prime is 5065400633. The next prime is 5065400671. The reversal of 5065400640 is 460045605.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 5065400598 and 5065400607.

It is a congruent 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, 35784 + ... + 106823.

Almost surely, 2^5065400640 is an apocalyptic number.

It is an amenable number.

5065400640 is an abundant number, since it is smaller than the sum of its proper divisors (11452028352).

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

5065400640 is a wasteful number, since it uses less digits than its factorization.

5065400640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142664 (or 142654 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 5065400640 is about 71171.6280550052. The cubic root of 5065400640 is about 1717.3992423448.

The spelling of 5065400640 in words is "five billion, sixty-five million, four hundred thousand, six hundred forty".