8157481402 has 8 divisors (see below), whose sum is σ = 13984253856. Its totient is φ = 3496063452.

The previous prime is 8157481393. The next prime is 8157481421. The reversal of 8157481402 is 2041847518.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×8157481402³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291338608 + ... + 291338635.

It is an arithmetic number, because the mean of its divisors is an integer number (1748031732).

Almost surely, 2^8157481402 is an apocalyptic number.

8157481402 is a deficient number, since it is larger than the sum of its proper divisors (5826772454).

8157481402 is a wasteful number, since it uses less digits than its factorization.

8157481402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582677252.

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 8157481402 is about 90318.7765749736. The cubic root of 8157481402 is about 2013.0382672553.

The spelling of 8157481402 in words is "eight billion, one hundred fifty-seven million, four hundred eighty-one thousand, four hundred two".