44398978574 has 32 divisors (see below), whose sum is σ = 75335339520. Its totient is φ = 19498520448.

The previous prime is 44398978571. The next prime is 44398978577. The reversal of 44398978574 is 47587989344.

It is an interprime number because it is at equal distance from previous prime (44398978571) and next prime (44398978577).

It is a super-2 number, since 2×44398978574² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44398978571) 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, 469622 + ... + 556185.

It is an arithmetic number, because the mean of its divisors is an integer number (2354229360).

Almost surely, 2^44398978574 is an apocalyptic number.

44398978574 is a deficient number, since it is larger than the sum of its proper divisors (30936360946).

44398978574 is a wasteful number, since it uses less digits than its factorization.

44398978574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025912.

The product of its digits is 243855360, while the sum is 68.

The spelling of 44398978574 in words is "forty-four billion, three hundred ninety-eight million, nine hundred seventy-eight thousand, five hundred seventy-four".