1968662201954 has 16 divisors (see below), whose sum is σ = 3374868035328. Its totient is φ = 843707735712.

The previous prime is 1968662201939. The next prime is 1968662201983. The reversal of 1968662201954 is 4591022668691.

It is a junction number, because it is equal to n+sod(n) for n = 1968662201893 and 1968662201902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3865934 + ... + 4345430.

It is an arithmetic number, because the mean of its divisors is an integer number (210929252208).

Almost surely, 2^{1968662201954} is an apocalyptic number.

1968662201954 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1968662201954 is a deficient number, since it is larger than the sum of its proper divisors (1406205833374).

1968662201954 is a wasteful number, since it uses less digits than its factorization.

1968662201954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772769.

The product of its (nonzero) digits is 11197440, while the sum is 59.

The spelling of 1968662201954 in words is "one trillion, nine hundred sixty-eight billion, six hundred sixty-two million, two hundred one thousand, nine hundred fifty-four".