101725978456 has 24 divisors (see below), whose sum is σ = 197087482260. Its totient is φ = 49222243920.

The previous prime is 101725978441. The next prime is 101725978457. The reversal of 101725978456 is 654879527101.

It is a super-2 number, since 2×101725978456² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101725978397 and 101725978406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101725978457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6608206 + ... + 6623581.

Almost surely, 2^101725978456 is an apocalyptic number.

It is an amenable number.

101725978456 is a deficient number, since it is larger than the sum of its proper divisors (95361503804).

101725978456 is a wasteful number, since it uses less digits than its factorization.

101725978456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13231855 (or 13231820 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 55.

The spelling of 101725978456 in words is "one hundred one billion, seven hundred twenty-five million, nine hundred seventy-eight thousand, four hundred fifty-six".