1958986694 has 16 divisors (see below), whose sum is σ = 3358849056. Its totient is φ = 839419200.

The previous prime is 1958986693. The next prime is 1958986703. The reversal of 1958986694 is 4966898591.

It is a self number, because there is not a number n which added to its sum of digits gives 1958986694.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1958986691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120914 + ... + 136154.

It is an arithmetic number, because the mean of its divisors is an integer number (209928066).

Almost surely, 2^1958986694 is an apocalyptic number.

1958986694 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1958986694 is a deficient number, since it is larger than the sum of its proper divisors (1399862362).

1958986694 is a wasteful number, since it uses less digits than its factorization.

1958986694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24431.

The product of its digits is 33592320, while the sum is 65.

The square root of 1958986694 is about 44260.4416381039. The cubic root of 1958986694 is about 1251.2492458120.

The spelling of 1958986694 in words is "one billion, nine hundred fifty-eight million, nine hundred eighty-six thousand, six hundred ninety-four".