7155678348 has 432 divisors, whose sum is σ = 23873740800. Its totient is φ = 1872351936.

The previous prime is 7155678329. The next prime is 7155678349. The reversal of 7155678348 is 8438765517.

It is a happy number.

7155678348 is a `hidden beast` number, since 7 + 1 + 556 + 7 + 83 + 4 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 7155678294 and 7155678303.

It is not an unprimeable number, because it can be changed into a prime (7155678349) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 56343861 + ... + 56343987.

Almost surely, 2^7155678348 is an apocalyptic number.

7155678348 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7155678348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11936870400).

7155678348 is an abundant number, since it is smaller than the sum of its proper divisors (16718062452).

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

7155678348 is a wasteful number, since it uses less digits than its factorization.

7155678348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 152 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The square root of 7155678348 is about 84591.2427382409. The cubic root of 7155678348 is about 1927.0083810326.

The spelling of 7155678348 in words is "seven billion, one hundred fifty-five million, six hundred seventy-eight thousand, three hundred forty-eight".