401537233672 has 8 divisors (see below), whose sum is σ = 752882313150. Its totient is φ = 200768616832.

The previous prime is 401537233649. The next prime is 401537233693. The reversal of 401537233672 is 276332735104.

It can be written as a sum of positive squares in only one way, i.e., 343834467876 + 57702765796 = 586374^2 + 240214^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×401537233672² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25096077097 + ... + 25096077112.

Almost surely, 2^401537233672 is an apocalyptic number.

It is an amenable number.

401537233672 is a deficient number, since it is larger than the sum of its proper divisors (351345079478).

401537233672 is a wasteful number, since it uses less digits than its factorization.

401537233672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50192154215 (or 50192154211 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 43.

Adding to 401537233672 its reverse (276332735104), we get a palindrome (677869968776).

It can be divided in two parts, 401537 and 233672, that added together give a square (635209 = 797²).

The spelling of 401537233672 in words is "four hundred one billion, five hundred thirty-seven million, two hundred thirty-three thousand, six hundred seventy-two".