101276997450 has 48 divisors (see below), whose sum is σ = 251397156576. Its totient is φ = 26982446400.

The previous prime is 101276997433. The next prime is 101276997533. The reversal of 101276997450 is 54799672101.

It is a junction number, because it is equal to n+sod(n) for n = 101276997393 and 101276997402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144916 + ... + 472815.

It is an arithmetic number, because the mean of its divisors is an integer number (5237440762).

Almost surely, 2^101276997450 is an apocalyptic number.

101276997450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101276997450 is an abundant number, since it is smaller than the sum of its proper divisors (150120159126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101276997450 is a wasteful number, since it uses less digits than its factorization.

101276997450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618839 (or 618834 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 51.

The spelling of 101276997450 in words is "one hundred one billion, two hundred seventy-six million, nine hundred ninety-seven thousand, four hundred fifty".