783142138990 has 32 divisors (see below), whose sum is σ = 1425368858400. Its totient is φ = 309783602304.

The previous prime is 783142138951. The next prime is 783142139027. The reversal of 783142138990 is 99831241387.

It is a happy number.

It is a super-2 number, since 2×783142138990² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 819477 + ... + 1495936.

It is an arithmetic number, because the mean of its divisors is an integer number (44542776825).

Almost surely, 2^783142138990 is an apocalyptic number.

783142138990 is a deficient number, since it is larger than the sum of its proper divisors (642226719410).

783142138990 is a wasteful number, since it uses less digits than its factorization.

783142138990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315796.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 783142138990 in words is "seven hundred eighty-three billion, one hundred forty-two million, one hundred thirty-eight thousand, nine hundred ninety".