31740067157 has 8 divisors (see below), whose sum is σ = 31855871232. Its totient is φ = 31624466400.

The previous prime is 31740067133. The next prime is 31740067189. The reversal of 31740067157 is 75176004713.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31740067157 - 2²² = 31735872853 is a prime.

It is a super-4 number, since 4×31740067157⁴ (a number of 43 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31740067127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265532 + ... + 366042.

It is an arithmetic number, because the mean of its divisors is an integer number (3981983904).

Almost surely, 2^31740067157 is an apocalyptic number.

It is an amenable number.

31740067157 is a deficient number, since it is larger than the sum of its proper divisors (115804075).

31740067157 is a wasteful number, since it uses less digits than its factorization.

31740067157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101659.

The product of its (nonzero) digits is 123480, while the sum is 41.

The spelling of 31740067157 in words is "thirty-one billion, seven hundred forty million, sixty-seven thousand, one hundred fifty-seven".