7155462900 has 144 divisors (see below), whose sum is σ = 21529872000. Its totient is φ = 1832624640.

The previous prime is 7155462889. The next prime is 7155462913. The reversal of 7155462900 is 92645517.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1729234 + ... + 1733366.

It is an arithmetic number, because the mean of its divisors is an integer number (149513000).

Almost surely, 2^7155462900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7155462900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10764936000).

7155462900 is an abundant number, since it is smaller than the sum of its proper divisors (14374409100).

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

7155462900 is a wasteful number, since it uses less digits than its factorization.

7155462900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4378 (or 4371 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 7155462900 is about 84589.9692635007. The cubic root of 7155462900 is about 1926.9890409482.

The spelling of 7155462900 in words is "seven billion, one hundred fifty-five million, four hundred sixty-two thousand, nine hundred".