4897868157 has 144 divisors (see below), whose sum is σ = 9253171200. Its totient is φ = 2480466240.

The previous prime is 4897868137. The next prime is 4897868177. The reversal of 4897868157 is 7518687984.

4897868157 is a `hidden beast` number, since 489 + 78 + 6 + 81 + 5 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (4897868137) and next prime (4897868177).

It is not a de Polignac number, because 4897868157 - 2¹⁵ = 4897835389 is a prime.

It is a super-2 number, since 2×4897868157² = 47978224966709153298, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 4897868094 and 4897868103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4897868137) 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, 38565828 + ... + 38565954.

Almost surely, 2^4897868157 is an apocalyptic number.

It is an amenable number.

4897868157 is a deficient number, since it is larger than the sum of its proper divisors (4355303043).

4897868157 is a wasteful number, since it uses less digits than its factorization.

4897868157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 181 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 63.

The square root of 4897868157 is about 69984.7708933879. The cubic root of 4897868157 is about 1698.2528944875.

The spelling of 4897868157 in words is "four billion, eight hundred ninety-seven million, eight hundred sixty-eight thousand, one hundred fifty-seven".