39390677742 has 64 divisors (see below), whose sum is σ = 85286154240. Its totient is φ = 12056840064.

The previous prime is 39390677741. The next prime is 39390677743. The reversal of 39390677742 is 24777609393.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (39390677741) and next prime (39390677743).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39390677741) 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, 17591859 + ... + 17594097.

It is an arithmetic number, because the mean of its divisors is an integer number (1332596160).

Almost surely, 2^39390677742 is an apocalyptic number.

39390677742 is an abundant number, since it is smaller than the sum of its proper divisors (45895476498).

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

39390677742 is a wasteful number, since it uses less digits than its factorization.

39390677742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337.

The product of its (nonzero) digits is 12002256, while the sum is 57.

The spelling of 39390677742 in words is "thirty-nine billion, three hundred ninety million, six hundred seventy-seven thousand, seven hundred forty-two".