615404530641 has 32 divisors (see below), whose sum is σ = 888656630400. Its totient is φ = 377540421120.

The previous prime is 615404530613. The next prime is 615404530651. The reversal of 615404530641 is 146035404516.

It is not a de Polignac number, because 615404530641 - 2¹⁷ = 615404399569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 615404530641.

It is not an unprimeable number, because it can be changed into a prime (615404530651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39786 + ... + 1110131.

It is an arithmetic number, because the mean of its divisors is an integer number (27770519700).

Almost surely, 2^615404530641 is an apocalyptic number.

It is an amenable number.

615404530641 is a deficient number, since it is larger than the sum of its proper divisors (273252099759).

615404530641 is a wasteful number, since it uses less digits than its factorization.

615404530641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150209.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 615404530641 in words is "six hundred fifteen billion, four hundred four million, five hundred thirty thousand, six hundred forty-one".