6354738537680 has 80 divisors (see below), whose sum is σ = 15912460704000. Its totient is φ = 2346192013824.

The previous prime is 6354738537673. The next prime is 6354738537761. The reversal of 6354738537680 is 867358374536.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (65).

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, 14340719 + ... + 14777201.

It is an arithmetic number, because the mean of its divisors is an integer number (198905758800).

Almost surely, 2^{6354738537680} is an apocalyptic number.

It is an amenable number.

6354738537680 is an abundant number, since it is smaller than the sum of its proper divisors (9557722166320).

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

6354738537680 is a wasteful number, since it uses less digits than its factorization.

6354738537680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450508 (or 450502 counting only the distinct ones).

The product of its (nonzero) digits is 304819200, while the sum is 65.

The spelling of 6354738537680 in words is "six trillion, three hundred fifty-four billion, seven hundred thirty-eight million, five hundred thirty-seven thousand, six hundred eighty".