7157078748 has 36 divisors (see below), whose sum is σ = 18675104448. Its totient is φ = 2308734720.

The previous prime is 7157078743. The next prime is 7157078771. The reversal of 7157078748 is 8478707517.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 7157078694 and 7157078703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7157078741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3205461 + ... + 3207692.

Almost surely, 2^7157078748 is an apocalyptic number.

It is an amenable number.

7157078748 is an abundant number, since it is smaller than the sum of its proper divisors (11518025700).

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

7157078748 is a wasteful number, since it uses less digits than its factorization.

7157078748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6413194 (or 6413189 counting only the distinct ones).

The product of its (nonzero) digits is 3073280, while the sum is 54.

The square root of 7157078748 is about 84599.5197858711. The cubic root of 7157078748 is about 1927.1340810423.

The spelling of 7157078748 in words is "seven billion, one hundred fifty-seven million, seventy-eight thousand, seven hundred forty-eight".