3911000642 has 4 divisors (see below), whose sum is σ = 5866500966. Its totient is φ = 1955500320.

The previous prime is 3911000633. The next prime is 3911000659. The reversal of 3911000642 is 2460001193.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2586841321 + 1324159321 = 50861^2 + 36389^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977750159 + ... + 977750162.

Almost surely, 2^3911000642 is an apocalyptic number.

3911000642 is a deficient number, since it is larger than the sum of its proper divisors (1955500324).

3911000642 is a wasteful number, since it uses less digits than its factorization.

3911000642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955500323.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 3911000642 is about 62537.9935878982. The cubic root of 3911000642 is about 1575.5395000028.

It can be divided in two parts, 391100064 and 2, that multiplied together give a triangular number (782200128 = T₃₉₅₅₂).

The spelling of 3911000642 in words is "three billion, nine hundred eleven million, six hundred forty-two", and thus it is an aban number.