4155628731 has 4 divisors (see below), whose sum is σ = 5540838312. Its totient is φ = 2770419152.

The previous prime is 4155628637. The next prime is 4155628769. The reversal of 4155628731 is 1378265514.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4155628731 - 2¹⁴ = 4155612347 is a prime.

It is a super-2 number, since 2×4155628731² = 34538500299825340722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4155628531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692604786 + ... + 692604791.

It is an arithmetic number, because the mean of its divisors is an integer number (1385209578).

Almost surely, 2^4155628731 is an apocalyptic number.

4155628731 is a deficient number, since it is larger than the sum of its proper divisors (1385209581).

4155628731 is a wasteful number, since it uses less digits than its factorization.

4155628731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385209580.

The product of its digits is 201600, while the sum is 42.

The square root of 4155628731 is about 64464.1662553701. The cubic root of 4155628731 is about 1607.7267831295.

The spelling of 4155628731 in words is "four billion, one hundred fifty-five million, six hundred twenty-eight thousand, seven hundred thirty-one".