39926782631040 has 128 divisors (see below), whose sum is σ = 133964862897600. Its totient is φ = 10086766129152.

The previous prime is 39926782631033. The next prime is 39926782631107. The reversal of 39926782631040 is 4013628762993.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547205607 + ... + 547278566.

Almost surely, 2^{39926782631040} is an apocalyptic number.

39926782631040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39926782631040 is an abundant number, since it is smaller than the sum of its proper divisors (94038080266560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39926782631040 is a wasteful number, since it uses less digits than its factorization.

39926782631040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094484214 (or 1094484202 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 60.

The spelling of 39926782631040 in words is "thirty-nine trillion, nine hundred twenty-six billion, seven hundred eighty-two million, six hundred thirty-one thousand, forty".