3431749815 has 128 divisors (see below), whose sum is σ = 6917702400. Its totient is φ = 1602478080.

The previous prime is 3431749807. The next prime is 3431749819. The reversal of 3431749815 is 5189471343.

3431749815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3431749815 - 2³ = 3431749807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3431749819) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2661691 + ... + 2662979.

It is an arithmetic number, because the mean of its divisors is an integer number (54044550).

Almost surely, 2^3431749815 is an apocalyptic number.

3431749815 is an abundant number, since it is smaller than the sum of its proper divisors (3485952585).

3431749815 is a wasteful number, since it uses less digits than its factorization.

3431749815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394 (or 1388 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 3431749815 is about 58581.1387308236. The cubic root of 3431749815 is about 1508.3606926314.

The spelling of 3431749815 in words is "three billion, four hundred thirty-one million, seven hundred forty-nine thousand, eight hundred fifteen".