7801355052748 has 6 divisors (see below), whose sum is σ = 13652371342316. Its totient is φ = 3900677526372.

The previous prime is 7801355052739. The next prime is 7801355052781. The reversal of 7801355052748 is 8472505531087.

It is a happy number.

It is a super-2 number, since 2×7801355052748² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 975169381590 + ... + 975169381597.

Almost surely, 2^{7801355052748} is an apocalyptic number.

It is an amenable number.

7801355052748 is a deficient number, since it is larger than the sum of its proper divisors (5851016289568).

7801355052748 is a wasteful number, since it uses less digits than its factorization.

7801355052748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950338763191 (or 1950338763189 counting only the distinct ones).

The product of its (nonzero) digits is 9408000, while the sum is 55.

The spelling of 7801355052748 in words is "seven trillion, eight hundred one billion, three hundred fifty-five million, fifty-two thousand, seven hundred forty-eight".