7745206148 has 6 divisors (see below), whose sum is σ = 13554110766. Its totient is φ = 3872603072.

The previous prime is 7745206121. The next prime is 7745206163. The reversal of 7745206148 is 8416025477.

It can be written as a sum of positive squares in only one way, i.e., 7693394944 + 51811204 = 87712^2 + 7198^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7745206099 and 7745206108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 968150765 + ... + 968150772.

It is an arithmetic number, because the mean of its divisors is an integer number (2259018461).

Almost surely, 2^7745206148 is an apocalyptic number.

It is an amenable number.

7745206148 is a deficient number, since it is larger than the sum of its proper divisors (5808904618).

7745206148 is a wasteful number, since it uses less digits than its factorization.

7745206148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936301541 (or 1936301539 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 44.

The square root of 7745206148 is about 88006.8528468096. The cubic root of 7745206148 is about 1978.5376874196.

The spelling of 7745206148 in words is "seven billion, seven hundred forty-five million, two hundred six thousand, one hundred forty-eight".