451271157450774 has 32 divisors (see below), whose sum is σ = 903399012225024. Its totient is φ = 150280938662400.

The previous prime is 451271157450769. The next prime is 451271157450787. The reversal of 451271157450774 is 477054751172154.

It is a happy number.

It is a super-2 number, since 2×451271157450774² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1032909174 + ... + 1033345974.

It is an arithmetic number, because the mean of its divisors is an integer number (28231219132032).

Almost surely, 2^{451271157450774} is an apocalyptic number.

451271157450774 is an abundant number, since it is smaller than the sum of its proper divisors (452127854774250).

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

451271157450774 is a wasteful number, since it uses less digits than its factorization.

451271157450774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599852.

The product of its (nonzero) digits is 38416000, while the sum is 60.

The spelling of 451271157450774 in words is "four hundred fifty-one trillion, two hundred seventy-one billion, one hundred fifty-seven million, four hundred fifty thousand, seven hundred seventy-four".