3651421534 has 32 divisors (see below), whose sum is σ = 6090209856. Its totient is φ = 1633082880.

The previous prime is 3651421531. The next prime is 3651421547. The reversal of 3651421534 is 4351241563.

3651421534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 3651421534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3651421531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107904 + ... + 137644.

It is an arithmetic number, because the mean of its divisors is an integer number (190319058).

Almost surely, 2^3651421534 is an apocalyptic number.

3651421534 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3651421534 is a deficient number, since it is larger than the sum of its proper divisors (2438788322).

3651421534 is a wasteful number, since it uses less digits than its factorization.

3651421534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29940.

The product of its digits is 43200, while the sum is 34.

The square root of 3651421534 is about 60426.9934218144. The cubic root of 3651421534 is about 1539.8815805384.

The spelling of 3651421534 in words is "three billion, six hundred fifty-one million, four hundred twenty-one thousand, five hundred thirty-four".